The best distraction blocker in the batch: free, open source, works via NFC or QR code, and physically cuts off your phone with a real-world action. Occasionally a profile deactivates on its own, and the QR scanner breaks on some devices.
評価点
Physically scanning an NFC tag to lock the phone creates a far stronger ritual than any in-app button.
不満点
The block sometimes disables itself, making the phone accessible without scanning.
向いている人：People with serious phone addiction who need a real physical barrier
The best activity tracker in the batch: a single button per task, detailed stats, and a one-time purchase with no subscription, praised by users with years of daily use. Calendar sync is unreliable, and the widget degraded in iOS 18.
評価点
One-time purchase with no subscription, plus honest analytics that show where your day actually goes.
不満点
After iOS 18 the widget lost the ability to start a task directly from the home screen.
向いている人：Analysts and freelancers who want to know where the day goes
A visual timer with water filling the screen makes time tangible, especially useful for children with attention difficulties and people with time blindness. The widget, Mac version, and extension beyond one hour do not work for everyone.
評価点
The screen filling with water removes the anxiety of numbers and helps feel time without stress.
不満点
No way to set a series of back-to-back timers without extra taps.
向いている人：Teachers, parents, and people with ADHD who need a concrete visual time scale
One of the best Pomodoro timers on iPhone: smooth task management, statistics, Apple Watch sync, and correct background operation. The distraction blocker lets individual apps slip through open categories.
評価点：The timer keeps running when you switch tasks and does not interrupt your flow with unnecessary prompts.
不満点：The app blocker unlocks an entire category when you just need to open one specific app inside it.
向いている人：Students and professionals who need a timer with tasks and stats on iPhone and Watch
FocusFlight creates a unique flight atmosphere as a metaphor for focused work and does a good job sustaining motivation, although sync between devices is unstable and the Mac interface can feel sluggish.
評価点：An interactive map with a flight route as a visual representation of the work session's progress.
不満点：Flight progress does not sync between phone and computer, and there are no short 10-minute sessions.
向いている人：Students and freelancers who want atmosphere, not just a timer
The warm retro design with illustrations sets this app apart from faceless minimalist timers, and the core Pomodoro mechanic works reliably. Main limitations: no Live Activities or widgets, and the timer pauses when you switch apps.
評価点：The unique vintage character of the interface, with its own atmosphere, makes using the timer feel like a ritual rather than just a tool.
不満点：The timer pauses when switching to another app, and there is no widget or Live Activities support for tracking without keeping the screen open.
向いている人：Students and creative people who care about the feel of their workspace
One of the best timers for students: social rooms, hour tracking, daily goals, and an open mode without a forced interval. The app is stable for most users, though it occasionally crashes after updates, and the group task-editing feature needs work.
評価点：Group rooms for shared time tracking motivate you to study alongside others and create a social context without distraction.
不満点：You cannot edit a goal schedule without fully deleting its history, causing accumulated data to be lost permanently.
向いている人：Students who need motivation through social progress and tracked study hours
A serious Pomodoro tool with session tracking and a site blocker, but the interface is loaded with options and takes a long time to configure. A good fit for people with ADHD who need structure rather than simplicity.
評価点：Detailed daily statistics help you see real progress and keep motivation up.
不満点：You cannot quickly change session length from the main screen without digging into settings.
向いている人：Productivity enthusiasts who care about time analytics
A reliable Pomodoro timer with tasks and a widget that genuinely helps maintain a working rhythm. Sync between devices is unreliable, there is no dark mode, and the end-of-session notification is too quiet.
評価点：The simple structure of work blocks and breaks lowers resistance before starting a difficult task.
不満点：Sync between phone and computer breaks down, and years of data can disappear.
向いている人：Students and workers who need a simple behavioral framework
A bean that knits while you work and looks upset when you open your phone creates a surprisingly strong emotional loop. App blocking behaves inconsistently, and push notifications break through even with the setting turned off.
評価点：The game loop of focus to socks to furniture for the bean motivates people with ADHD better than pure timers do.
不満点：Sync between phone and tablet requires manual file transfer, which breaks the entire flow.
向いている人：Young people with ADHD who need an emotional hook
One of the best Pomodoro timers in the App Store, with a clean design, focus sounds, and cross-device sync. The core mechanic is solid, though Live Activities sometimes disappear and the site blocker has to be configured separately on each device.
評価点：Sessions sync between iPhone and Mac, and the distracting-site blocker holds until the timer ends with no easy way around it.
不満点：App blocking on iPhone can be bypassed by force-quitting, and block lists do not sync between devices automatically.
向いている人：Anyone who seriously works with the Pomodoro technique on Mac and iPhone
Focus To-Do combines Pomodoro with a full task planner and works well for people who need a system rather than just a timer, though widget bugs and task-logic issues have accumulated in recent versions.
評価点：Sync across phone, browser, and desktop inside one working system.
不満点：Widgets show wrong data, and tasks occasionally duplicate or reschedule themselves to the next day on their own.
向いている人：People who need a Pomodoro timer inside a full-featured task planner
A beautiful Pomodoro timer with solid Apple Watch and iPhone sync, a clean interface, and accumulated session history. Version 8.0 broke stability for some users, and moving all functionality behind a subscription upset longtime buyers.
評価点：Apple Watch sync works without lag, and the timer runs in the background correctly.
不満点：Stats do not let you view total time spent on a specific task over an arbitrary date range.
向いている人：Productive Apple users who want a beautiful and reliable Pomodoro timer
A rare case where RPG mechanics genuinely motivate studying rather than becoming a distraction in themselves. Some ADHD users report 2-3 hour sessions without getting sidetracked. The risk: the game can pull you in harder than the task itself.
評価点：Character progression turns every study session into tangible movement toward a goal.
不満点：The game loop is deep enough to become its own source of distraction instead of the task.
向いている人：Students and people with ADHD who are motivated by RPG rewards rather than a bare timer
A physical dongle, an NFC fob, as the unlock mechanism creates a real barrier against impulsively picking up the phone, and it honestly works where purely software solutions give in. The decision to remove the timed session feature without a replacement frustrated loyal users and reduced everyday flexibility.
評価点：The physical ritual of touching the fob breaks the automatic reflex far better than an on-screen warning.
不満点：Quick session-by-duration launch was removed, leaving only scheduling, which does not work for unpredictable days.
向いている人：People with serious phone addiction who are willing to carry a fob
An honest Pomodoro with tomato-themed gamification, stable performance, and a pleasant look. End-of-session notifications are sometimes silent, and category-level stats are limited.
評価点：The visual tomato counter motivates you not to break the session.
不満点：No breakdown of time by category for a given day or week.
向いている人：Students and remote workers who need a simple, enjoyable Pomodoro
A beautiful travel concept and flexible timer mode selection, Pomodoro, fixed, or open-ended, make this one of the most pleasant timers around. The timer pauses when you switch apps, and the cumulative counter stops accumulating for some users.
評価点：The cozy travel aesthetic and built-in playlist selector remove every reason not to start.
不満点：The timer pauses whenever you switch apps, making it useless for working across multiple apps at once.
向いている人：People studying at home who want a beautiful environment for their sessions
A minimalist mindfulness tool: before opening a blocked app you take a deep breath or do a short exercise, which genuinely breaks autopilot and reduces social media use. The weak point is that the free tier blocks only one app, making it nearly useless when you need to limit several social networks.
評価点：A pause before Instagram breaks the conditioned reflex better than a hard block. Several reviews describe real habit change within weeks.
不満点：Hard blocking is easy to bypass even in the paid version, and one app on the free tier is far too few.
向いている人：People who want to mindfully cut back on social media rather than block it by force
A gamified timer with real tree planting as a reward for focus. The mechanic works well for motivation, but app blocking is unreliable on iPad, the interface degraded after replacing illustrations with AI art, and coins and progress are sometimes lost.
評価点：The idea of growing real trees for time away from your phone hooks users and keeps them engaged longer than any plain timer.
不満点：The app whitelist works intermittently, and there is no cross-platform connection between iOS and Android.
向いている人：Students who need game-like motivation for studying
MultiTimer handles running several independent timers at once and has served users faithfully for years, but notifications are unreliable on a locked screen and when the app is in the background.
評価点：Multiple named timers on one screen running in parallel without confusion.
不満点：The alert does not fire when the phone is on silent or the app is backgrounded.
The neuroscience genuinely works for part of the audience, especially people with ADHD. Several users write about a noticeable effect after months of daily use. A weak frontend and an unstable player, playback errors and dropped tracks, undercut the experience.
評価点：The high-neural-effect mode helps people with ADHD sustain attention where regular music fails.
不満点：The player periodically crashes with a playback error, and the interface gives no sense of what is happening inside.
向いている人：People with ADHD who need background sound without lyrics
A solid Pomodoro timer with convenient task-zone breakdown, but sync between devices is spotty. Long-term users stick around, while newer ones increasingly leave because of lost data and broken notifications.
評価点：Flexible session-to-task and GTD zone mapping helps you see exactly where the day goes.
不満点：Sync between iPhone, iPad, and Mac is unreliable: data can disappear, and historical stats vanish after re-login.
向いている人：GTD enthusiasts and structured time-tracking fans
The chicken-and-farm game mechanic genuinely keeps users in sessions, and the overlay countdown widget is handy when working on an iPad. The app whitelist sometimes fails, and there is still no dark mode in 2025.
評価点：The visible chick that dies if you leave the app creates an emotional attachment that keeps you in a session better than any timer.
不満点：No home-screen countdown widget, which causes ADHD users to lose track of time remaining.
向いている人：School students and university students motivated by game-like rewards rather than plain numbers
One of the few blockers with cross-device sync and a hard mode that actually works. The VPN layer can slow down the internet or conflict with other apps, and iOS settings allow the block to be bypassed.
評価点：The hard mode with one unlock per week removes the escape hatch for weak moments.
不満点：The VPN layer periodically slows down apps you actually need and conflicts with other services.
向いている人：Adults with serious phone addiction who need a reliable multi-device barrier
The classic focus timer with a virtual forest gamification and real tree planting: the mechanic works, the design is pleasant. The weak point is the shift to a subscription that upset paying users, monthly challenges occasionally fail to register, and data was lost for some users after a forced account sign-out.
評価点：Not wanting to kill the tree keeps you at your desk longer than any act of willpower.
不満点：Monthly challenges are buggy, pausing the timer now requires a subscription, and stats sometimes do not match actual sessions.
向いている人：Students and freelancers who need visual motivation with a minimalist timer
Routinery guides you through the steps of a routine well and helps with time blindness, but an update broke basic navigation between tasks, and notifications can bombard you at the wrong moments.
評価点：The sequential one-task-now mode removes anxiety from a long to-do list.
不満点：Navigation between steps is rigid: skipping one step automatically closes all the ones before it.
向いている人：People who struggle with planning their morning and evening
The cozy visual atmosphere and shared sessions genuinely help some users sit down to study. Phone-number registration locks out users whose country is not supported, and the music cuts out periodically.
評価点：The virtual cafe and the presence of other students create a sense of working together and reduce procrastination.
不満点：Music drops out several times a week and support does not respond to reports.
向いている人：School and university students who need the feeling of not studying alone
A cozy rain-and-ASMR atmosphere creates a pleasant study context, and the basic Pomodoro with background sounds is available for free. The same complaint appears from every user: sound and timer stop when you leave the app, breaking any multi-app workflow.
評価点：Library ASMR and rain sounds create a sense of someone nearby, which especially helps people with ADHD.
不満点：The timer and background sound stop when you switch to another app, making it impossible to work across multiple apps at once.
向いている人：Students who need a cozy sound environment to get absorbed in studying
The garden gamification genuinely motivates students to study, and the built-in flashcards work. However the timer records time incorrectly, and adding AI features has hurt stability and design.
評価点：A shared garden with friends creates a live social incentive not to abandon the session.
不満点：The time tracker occasionally logs wrong data and loses earned coins.
向いている人：School and university students who need game-like motivation for studying
The blocker works harder than iOS Screen Time and genuinely cuts social media use by a large factor. The absence of a scheduled block by time of day limits flexibility.
評価点：The five-minute forced limit after time runs out is strict enough to break the habit loop.
不満点：No way to automatically enable a block on a schedule, for example overnight.
向いている人：Adults who find iOS Screen Time too easy to bypass and need a real barrier
Refocus blocks apps and creates real friction before opening distracting sources, but hard mode is paid-only and the free block is too easy to override on your own.
評価点：The friction when trying to open a blocked app genuinely breaks autopilot.
不満点：In free mode it is too easy to unblock yourself, which defeats the whole point of the restriction.
向いている人：People who want to break the habit of automatically opening social media
A rich set of blocking rules and schedules, but automatic schedule-based triggering regularly breaks and requires a manual restart. Strict mode can be bypassed through Apple settings.
評価点：Flexible schedules and geofences give precise control over app access.
不満点：Schedule-based auto-blocking does not always fire and requires manual refresh.
向いている人：People with ADHD who want strict but configurable screen control
A social study community with time tracking and competitive elements that genuinely motivates studying alongside friends. Technical issues after updates, freezes, and offline mode failures reduce reliability.
評価点：Shared competitive study-time tracking with friends creates real mutual motivation that a solo timer cannot provide.
不満点：After updates, offline mode, app blocking, and data sync regularly break, making the app an unreliable daily tool.
向いている人：School and university students who value studying with friends and group dynamics
The slow-down mechanic before opening an app works better than standard iOS limits: users genuinely cut time on social media. The block schedule sometimes freezes and does not lift on time.
評価点：Having to confirm intent before entering an app creates a pause that is often enough to change your mind.
不満点：Schedule-based blocking keeps running past the set period with no quick way to lift it.
向いている人：People who want doomscrolling to be intentional rather than automatic
A multi-timer with support for several simultaneous countdowns and task labels, reliably used for years in the kitchen and at the gym. A recurring audio and volume-conflict issue with ads appears and disappears across updates, and the basic alert sometimes fails to fire in the background.
評価点：Multiple named timers running simultaneously on one screen, convenient for cooking and workouts.
不満点：The alert does not always sound when the app is backgrounded, and ads interrupt the volume of external audio.
向いている人：People juggling several tasks with different timers
The RPG gamification of focus is an interesting idea, and several users say it was what made deep work a habit for them. Combat mechanics are buggy, progress occasionally resets completely, and the reward system loses meaning without access to adventure mode.
評価点：The RPG loop of focus to coins to gear to battle motivates where a plain timer bores you within a day.
不満点：Progress and equipment periodically reset completely with no explanation.
向いている人：Gamers and fantasy fans who need narrative motivation
A long-lived Pomodoro timer that gradually accumulated features until it lost focus: a mandatory multi-screen onboarding, a freezing home-screen widget, and no cross-device sync despite a paid subscription. The core 25/5 mechanic works but is buried under layers of new interface.
評価点：Once configured, the simple Pomodoro rhythm with ambient sound genuinely keeps you in the flow.
不満点：Multi-screen onboarding cannot be skipped, and the home-screen widget periodically freezes.
向いている人：Patient Pomodoro users willing to work through the setup
Pomodoro Focus Timer is simple and clear for basic use but has accumulated regressions: some users see their sound settings reset after updates, the timer fails to notify in the background, and Watch integration is unstable.
評価点：Minimalism with no extra screens, session starts in literally one tap.
不満点：The timer does not notify when the app is not in focus, making it an unreliable tool.
向いている人：People who need a quick Pomodoro with no settings or statistics
The former Focus Keeper with a clean interface and configurable Pomodoro rhythm. After the rebrand and the addition of screen-time data access it lost trust from part of its audience, and the timer started stopping in the background for some users.
評価点：Clean minimalist interface with the ability to set each phase length without extra screens.
不満点：The timer stops when you switch to another app or lock the screen, making background counting unreliable.
向いている人：Classic Pomodoro fans with no interest in social features or gamification
A simple Pomodoro timer with a minimal interface that runs stably on the phone. The hourly alert does not fire on a locked screen, and the Watch app periodically loses sync.
評価点：Configuring session and break lengths without extra screens makes starting instant.
不満点：The timer does not switch to break mode automatically if the screen turns off or a call comes in.
向いている人：People who want a minimalist Pomodoro with no subscriptions and no extra features
The music genuinely induces flow and helps with ADHD, but the mobile app has been effectively abandoned: Bluetooth does not work, tracks loop, and support does not respond. Value remains only in the web version.
評価点：Music channels tuned to brain type noticeably speed up entry into deep focus.
不満点：The mobile app is not updated: playback cuts out, Bluetooth is broken, and the track library loops.
向いている人：People working at a computer who are happy to listen through a browser rather than their phone
Generative audio background for focus and sleep with beautiful visuals, but the promotional videos feature tracks that are not in the app, the 120-dollar-a-year subscription does not show up in Apple subscriptions and is hard to cancel, and audio interrupts on notifications. Works genuinely for some ADHD users.
評価点：The adaptive soundscape noticeably improves concentration for neurodivergent people, according to several independent reviews.
不満点：Sound stops on any call or notification and requires manual restart, which is fatal for meditation and sleep.
向いている人：People with ADHD who benefit from a continuous background sound stream for work or sleep
Cape hides apps and partially works on a schedule, but location-based scheduling is unreliable, and after updates hidden apps sometimes fail to return or, conversely, fail to disappear.
評価点：Automatic hiding of work apps at home with no manual intervention.
不満点：Schedule and geolocation triggers often do not fire on time without manually opening the app.
向いている人：People who want to separate a work profile from a personal one on their phone
The social co-studying aspect works and motivates, but the timer crashes after the first break, stats show wrong time, and Safari blocking is broken after an update.
評価点：Virtual co-study rooms create a sense of presence.
不満点：The timer is unstable: crashes on breaks and loses session data.
A stylish Pomodoro timer with a good concept and visual execution that falls short on technical details: Watch vibration notifications miss sessions, widgets conflict with timer controls, and settings resetting on every launch is annoying. Potential is there, stability is not.
評価点：A clean interface and Shortcuts integration help weave Pomodoro into a real workflow.
不満点：Apple Watch vibration notifications fire unpredictably, and adding a widget to the screen breaks timer controls inside the app.
向いている人：Apple ecosystem users who want Pomodoro with Shortcuts integration
Same concept as Prayr: block the phone during prayer with reminders. The basic mechanic works, but blocking stops functioning after updates and there are very few reviews confirming stable long-term operation.
評価点：The simple idea of blocking the phone between prayers is immediately clear and works during the trial period.
不満点：App blocking periodically stops working after updates, leaving paying users without a functional tool.
向いている人：Muslims who need a forced phone break during prayer time
A simple repeating timer with a responsive developer, but the core task of an audio alert on Apple Watch in the background is unreliable. The screen has to stay active or the alert disappears.
評価点：The developer fixes breakages after iOS updates quickly and replies to emails.
不満点：The timer does not alert on Apple Watch when the app is backgrounded or the screen is locked.
向いている人：People who train with intervals and are comfortable keeping the screen active
Time Timer wins on its visual representation of shrinking time, but basic alert reliability suffers: sound disappears on a locked screen, during incoming calls, and when running in the background.
評価点：A clear visual disc that physically shows how much time remains.
不満点：The alert fires unpredictably: sometimes silent, sometimes at the wrong time, sometimes four beeps instead of continuous.
向いている人：Teachers and parents who need a clear visual timer for children
An app blocker with profiles and a strict mode that helps some ADHD users limit social media, but strict mode can be bypassed by rebooting the phone or entering iOS settings, making the tool unreliable. Forced rating prompts inside the app are annoying.
評価点：The extra step required to bypass the block already creates enough resistance to keep you from reflexively reaching for the phone.
不満点：Strict mode is not protected against a device reboot bypass, which defeats it for users with strong addiction.
向いている人：Adults with ADHD who need a soft barrier against social media during working hours
The three-task-in-boxes concept worked well in the simpler version, but the redesign added clutter and broke what people loved about the app. Background music with no way to turn it off and stale updates undermine trust.
評価点：The bento method and Japanese aesthetic help you focus on three key tasks without anxiety.
不満点：After the redesign the app lost its main advantage, simplicity, and now feels like an overloaded task manager.
向いている人：People looking for a visually pleasant focus timer without extras
Before the major update Opal was one of the best distraction blockers, with a clean interface and real results, but the redesign made navigation chaotic, weakened blocking, and put basic features behind a paywall. The product is currently in a transitional crisis.
評価点：The old version genuinely reduced screen time. Several users report dropping from 7 to 2 hours a day.
不満点：After the update blocking became bypassable, the interface is confusing, and the focus-hours widget is broken.
向いている人：People still on the old version or willing to wait for fixes
Blank Spaces Launcher gives a minimalist screen free of temptation and works for some users, but setup is complex, widgets lost their clean look in iOS with Liquid Glass, and blocking resets on its own periodically.
評価点：An empty home screen with only the icons you need physically removes triggers for autopilot app-opening.
不満点：Blocking disables itself periodically, and once reset it cannot be re-enabled without recreating the setup.
向いている人：People who want to hide apps from sight rather than block them at the system level
Beautiful flip-clock visuals and a widget, but the Pomodoro resets when you switch apps or lock the screen, and the timer is interrupted by rating requests right in the middle of a session.
評価点：The minimalist design with digit-flip animation looks good on screen.
不満点：Pomodoro resets when you leave the app or when the battery runs low.
向いている人：People who want attractive desk-style clocks and do not rely on background timer operation
The cute baked-goods reward concept for sessions is motivating and pulls people back to the app, but a critical sign-in error makes the app completely inaccessible to a significant portion of new users, and the developer has not pushed an update in over two years.
評価点：A game-style pastry collection earned through study sessions creates tangible accumulation that genuinely draws you back to your desk.
不満点：Progress and the pastry collection reset without warning, and accumulated study hours vanish permanently.
向いている人：Teenagers and students motivated by visual reward accumulation
A habit tracker with a tidy design and reminders, but the timer does not work in the background, cross-device sync has been removed, and the paywall appears at the very start of onboarding. The core action of marking a habit complete is awkward.
評価点：A clean interface and widget motivate you to return to the list every day.
不満点：The goal timer stops when the app is minimized, there is no sync, and adding or editing a habit is cumbersome.
向いている人：Beginners in habit tracking on a single device
Brainrot has an attractive and motivating design, but app blocking does not activate automatically on schedule without manually launching the app, which defeats the entire self-restriction mechanism.
評価点：Brain health gamification expressed as a percentage creates a real emotional stake.
不満点：Blocking does not turn on without opening the app. The user has to remember to do it every day.
向いている人：Young people who want to control social media time through a game mechanic
A kanban board for tasks, not a timer or focus blocker. The mobile app is chronically slow and loses sync, making it barely usable as a productivity tool on the phone.
A nice interface and gentle reminders appeal to users, but app blocking reliably breaks, schedules delete themselves, and tracking only works with the app open. The core screen-control function does not work.
評価点：Non-intrusive motivating notifications genuinely helped people reduce phone time without feeling forced.
不満点：App blocking stops working after updates, schedules reset on their own, and the timer requires the app to stay open.
向いている人：People who want to reduce phone dependence but not for hard control
The app sets up phone blocking before prayer and helps users not miss prayers. Users who bought access report it works. However nearly all functionality is behind a paywall with no meaningful free mode.
評価点：Blocks distracting apps until the prayer is finished and genuinely helps maintain the prayer schedule.
不満点：No Shia prayer-time calculation methods, narrowing the audience.
向いている人：Practicing Muslims willing to pay for prayer discipline
The physical card-slot mechanic is an interesting idea, but block scheduling behaves unpredictably and support is unhelpful. Strong concept, rough execution.
評価点：The physical barrier genuinely makes it harder to pick up the phone and doomscroll.
不満点：Block scheduling is unreliable: blocks do not lift after a break, and manual control is buggy.
向いている人：People who want to physically set down the phone rather than just set a limit
Blocks sites and apps, but the VPN layer sometimes interferes with services you actually need. The free tier is nearly nonexistent: even a 7-day schedule requires a subscription.
評価点：Works on iOS without complex setup and blocks the sites you target.
不満点：The VPN-based blocking method periodically cuts access to services you need.
向いている人：Users who want to block one or two distracting sites without complexity
A cute study timer with a rabbit character and a session-point system. The idea is motivating and works for younger users, but ads appear on every tap and interrupt the music, completely destroying the work flow. Without purchasing ad removal the app is counterproductive.
評価点：The virtual pet and reward shop keep teenagers studying better than a plain timer.
不満点：Ads appear every time you switch tabs and interrupt background music, the top complaint across reviews.
向いている人：School and university students who have bought ad removal
The tamagotchi-pet concept for self-discipline is appealing, but the app is technically unstable: items disappear, progress resets, streaks clear without warning. Too few product mechanics are available without a subscription.
評価点：The small panda you care for creates attachment and the desire to return every day.
不満点：Purchased and found items regularly disappear, which destroys the meaning of the reward system.
向いている人：Teenagers who enjoy the tamagotchi aesthetic and caring for a virtual pet
A minimalist timer with a clean display, but with unsafe ads in the free version and a timer that stops when you switch to another app. The app has not been updated in a long time and the key shortcomings remain.
評価点：A clean large single-mode display helps concentration if the device is dedicated solely to the timer.
不満点：The timer pauses when switching to another app, making background operation impossible.
向いている人：Anyone who needs a simple attractive timer on a dedicated screen
A simple site blocker for Safari that worked well before iOS 18 and now fails to block for most users. The developer has not updated the app in over two years and does not respond to reports.
評価点：Before iOS 18 it worked without complex setup and held the set timer with no way to reset it.
不満点：Works only in Safari and is easily bypassed through other browsers or by disabling the extension in Settings.
向いている人：Safari users on iOS before version 18 who need a simple one-shot barrier
An accountability-based blocker that works when it does not crash, but instability and iOS limitations make it unreliable. Scheduled blocks regularly fail to start or stop on time.
評価点：The accountability-partner mechanic, where a partner can approve or reject an unblock request, genuinely raises the cost of bypassing restrictions.
不満点：Block scheduling is unreliable: it often fails to turn on or off at the right time.
向いている人：People fighting content addiction who need external accountability
The idea of a vibration-only timer with no sound is useful in meetings and workouts, but the execution fails: the timer stops when the screen locks and resets when you leave the app. The core feature does not work in the core scenario.
評価点：A silent vibration alert with no sound is perfect for discreet time control during presentations or public speaking.
不満点：The timer stops when the screen locks and does not run in the background, making the app useless in most real situations.
向いている人：Speakers and coaches who need a silent cue right in their hand
The Mars colony concept growing from focus sessions is original, but the app is technically unstable: progress is lost on crashes, maps fail to load, and support is unresponsive. Feels like an abandoned project.
評価点：The idea of building a Mars base in exchange for real phone-free time creates a genuine charge for the first few sessions.
不満点：Crashing during a session resets progress, and the developers do not respond to reports.
向いている人：Space enthusiasts willing to tolerate an unstable app for the concept
Essentially just a large digital clock face, and it does even that poorly: the widget does not update the time zone during daylight saving transitions, and ads cover the screen even after purchase. Not suitable as a focus work timer.
評価点：A large readable full-screen display with different styles is convenient as a desk clock on a tablet.
不満点：Ads interrupt use even for paying users, and the widget does not switch time zones automatically.
向いている人：People who need a large desk clock on a spare device
Based on reviews this is a browser with userscript support, not a focus timer. Scripts break after updates, pages fail to load, and the core function is unstable.
評価点：The idea of running userscripts directly in a mobile browser appeals to a technical audience.
不満点：Scripts stop working without warning after updates, and there is no clear way to fix them.
The app changed purpose: it was a hearing test, now it is a screen time control tool. Reviews reflect both periods and do not give an honest picture of current functionality. It cannot be evaluated as a focus tool from the current sample.
評価点：Blocking with a minimal limit on useful apps that replaces a bad habit with a good one looks unconventional and interesting.
不満点：The app changed its purpose and audience, leaving old users disoriented, and the store reputation does not reflect the actual current product.
向いている人：Hard to define an audience given the app's mixed history
