A time-tested simple weight diary with badges and motivation, like levels in a game. You enter the day's weight, keep notes and watch the trend, and many use it for Mounjaro and Ozempic. Its weak spots are honest, the paid version only removes ads and does not migrate months of data automatically, and there is no backup import.
評価点
Simple and stable, people track weight here for years, and the badges and motivation genuinely keep you engaged. Handy for tracking Mounjaro weight loss, and there is a passcode lock.
不満点
The paid version only removes ads and does not carry over months of data, so you re-enter it. A full graph is hard to find, and the old passcode protection went missing in one version.
向いている人：People who want a reliable simple weight diary for the long haul, including alongside GLP-1, and who value privacy and motivation.
A deliberately simple weight and BMI tracker with no calorie counter and no extra screens. You enter only the day's weight and can skip days. Importing historical data is not supported, and the built-in goal calculator used to lie and suggest eating 500 calories a day, which is dangerous misinformation.
評価点
Maximum simplicity, just weight and nothing extra, and you do not have to log every day. A passcode hides the number from prying eyes.
不満点
You cannot import old data even manually, and the graph shows only a couple of weeks. The goal calculator gave harmful 500-calorie advice, and the lock screen was removed in the new version.
向いている人：People who just want to log weight and BMI without calories or settings, and who care about keeping the number private.
Easy shot and injection-site logging, motivating progress view, GLP-1 focus, reminders, useful free version for basics
不満点
More tools pushed behind the paywall, shots silently fail to log, total data loss when switching Android and iPhone, review prompt after every shot, crashes with a second medication
向いている人：People on GLP-1 who want a focused injection and weight tracker and will likely pay for pro
A long-running minimalist weight tracker with cheerful reward notes for pounds lost. You weigh in daily and scroll through history. After a major update the graph started showing only monthly averages, the entry step was coarsened to half a pound, and some people lost years of records moving to the new version.
評価点：Simple and uncluttered, with funny notes like losing five pounds is worth 175 silver coins. Scrolling history and daily weigh-ins over years work well.
不満点：The update coarsened the weight step to half a pound and cut the graph range to three months. Some people lost years of history, CSV export crashes the app, and there is no iCloud sync.
向いている人：People who weigh in daily and love minimalism with a touch of humor, if they can live with a coarse weight step.
A weight tracker built around trend and light gamification with coins and BMI. Daily weigh-ins and a months-long graph genuinely keep many people on track for years. But Apple Watch sync is shaky: entries on the watch and phone live separately, logging weight on the watch is fiddly, and the math around percentages and goals confuses a lot of users.
評価点：The multi-year trend graph, the BMI metric and moderate coin gamification, plus a responsive developer who ships fixes fast.
不満点：Watch and phone do not sync with each other, the percentage and goal math is odd, you cannot fix a wrong entry or add historical data, and there is no landscape mode on iPad.
向いている人：People who weigh in every day and watch the long-term trend rather than a single number.
A tidy weight tracker with BMI, a trend graph, progress photos and widgets. Logging weight is simple, and months of history and body shots are clearly visible, with a one-time purchase instead of a subscription. It is spoiled by pushy achievements after every weigh-in and notifications that shame you for skipping, plus shaky Apple Health import after changing phones.
評価点：A clean simple interface, the trend graph and multi-angle progress photos, home-screen widgets, a one-time purchase and real stories of dropping a hundred pounds or more.
不満点：Achievements and backup prompts pop up after every weigh-in, notifications shame you for skipping, the plan caps you at two units a week, the promised free turns into a charge, and Health import sometimes breaks.
向いている人：People who want a visual tracker with progress photos and a one-time payment and are ready to switch off the nagging notifications.
A body tracker built around before-and-after photos and measurements, with weight and BMI as a side note. After a big redesign people lost their measurement history and their paid Pro turned back into a subscription. Sync has been broken for many for years, and the photo compare zooms shots inconsistently, so honest side-by-sides are hard.
評価点：Before-and-after photos in one place genuinely motivate, you see progress with your own eyes. It used to offer up to fifteen measurement fields and a handy CSV export.
不満点：The redesign wiped years of measurements and stripped paid Pro back to a subscription. Sync fails, the number of measurements was cut, and photo compare distorts scale.
向いている人：People who track by photos and measurements rather than weight alone, and who are willing to back up regularly so they do not lose history.
評価点：Money on the line as strong motivation, real large payouts, step and weight-loss challenges, built lasting habits, keeps you accountable
不満点：Buggy verified weigh-ins and video uploads, confusing and poor bet odds, pushes unhealthy weight-loss targets, hard to cancel with slow support, clunky navigation
向いている人：People who lose weight best under a money-on-the-line bet and can handle a rough, buggy app
A food and weight tracker built on the old Weight Watchers points, cheaper than the original for a yearly fee. You keep a food diary, scan barcodes and watch your weight trend. But after the subscription auto-renews some people lose access to what they paid for, restore purchase fails, and the scanner and points math sometimes return wild numbers.
評価点：It brings back the old colored WW plans cheaper than the original, with a large food database and a points calculator. The weight trend and food diary are handy, and support helps when reached.
不満点：After the yearly auto-renewal access to paid features vanishes, and restore purchase does not work. The barcode scanner is weak, points are sometimes absurd, and support is unreachable without logging in.
向いている人：Fans of the old Weight Watchers points who will tolerate subscription hassle for a cheap alternative.
More of a gamified weight-loss friend with an AI food scanner than a pure weight tracker. The Tada character motivates and praises healthy eating, and some report serious weight loss. But the calorie scanner is noticeably off in both directions, the food database has gaps, and the once-free macros now sit behind a subscription.
評価点：The cute companion character that praises healthy meals and keeps you going, a working AI food scanner, and real weight loss for some users.
不満点：The AI scanner over- and under-estimates calories, the food database is incomplete and you cannot add your own item, macros were pulled from the free version, plus glitches and silent support.
向いている人：People who value friendly motivation and food logging over precise weight tracking and are willing to double-check calories by hand.
A group weight-loss tracker with teams, challenges and chat. Weight is entered by hand, and auto-sync with Apple Health and smart scales barely works even though the data is already there. The weigh-in button sometimes disappears, the app crashes with a login error, and Pro popups appear before you can even look around.
評価点：Teams and shared challenges keep motivation up, it is nice to lose weight with family or coworkers. Food entry is simple, and the leaderboards and chat in a safe circle land well.
不満点：No proper auto-sync with Apple Health and scales, so weight must be typed manually. Pro popups and hidden charges at signup, and the weigh-in button and login sometimes break.
向いている人：Small groups of friends or family who value mutual support and the thrill of competition more than automation accuracy.
評価点：Fun and motivating old avatar version, simple food and weight logging, cute goal options, large food database, more interactive than most
不満点：Beloved avatar version removed, once-free features moved behind a paywall, no login so data and profile lost, data wiped after updates, broken barcode scanner
向いている人：People who want a light, playful food diary and can live without account backup or the old avatar
A simple weight and BMI tracker with an avatar that gets heavier and slimmer along with you. For some it is a thrill, but many feel shamed, the avatar draws extra weight and offends, and inclusivity of skin tone and body is thin. Basics like BMI, changing the avatar and total pounds lost are locked behind a subscription of around 30 dollars a year, and there are intrusive ads.
評価点：The avatar that slims down with you genuinely motivates, seeing the graph line crawl downward. Simple and visual, tracks weight and body-fat percentage.
不満点：The avatar shames and draws extra weight, inclusivity is thin, and it hurts some people. BMI, avatar changes and total lost sit behind a subscription, and ads are intrusive.
向いている人：People motivated by a visual avatar and graph, with solid self-esteem, who are willing to pay extra for basic features.
A free weight and BMI tracker with notes, photos and a passcode. Entry is simple, but two limits have annoyed the whole thread for years, the graph shows only 7 or 30 days and never lets you see the full journey. Data sometimes vanishes entirely, does not transfer to a new phone, and there are heavy ads with no way to pay them away.
評価点：Simple and free, you enter weight and add notes, photos and a passcode. The monthly graph motivates, you see the weight going down.
不満点：The graph is locked to 7 or 30 days, and you cannot see the full journey despite years of requests. Data suddenly wipes, does not transfer to a new phone, and ads are heavy with no removal option.
向いている人：People happy with a free simple tracker over short stretches, who back up their data and tolerate ads.
評価点：Helpful intermittent-fasting timer and stages, real weight loss, interactive insights, recipes, keeps you honest about food
不満点：Charges without consent and refused refunds, free version logs only one food a day, inaccurate freezing food scanner, no dark mode or widgets, heavy paywall
向いている人：People focused on intermittent fasting who watch billing closely and will pay for the full app
A simple BMI and ideal-weight calculator. After updates some people got stuck on kilograms with no pounds and inches option, and weight entry sometimes breaks. Worse, BMI categories are computed wrong, a healthy range is flagged as overweight, there is no age input, and ads push aggressively.
評価点：A clean and fast calculator with no popups for some people, handy for figuring BMI and ideal weight. It helps some folks at work every day.
不満点：BMI categories are computed wrong, a healthy weight is flagged as overweight and called fat. After updates it got stuck on kilograms, entry breaks, ads are aggressive, and age is ignored.
向いている人：People who need a quick one-off BMI figure and will double-check the category themselves rather than take the label to heart.
評価点：Instant BMI result, very easy to use, clean quick input, handy as a rough check
不満点：Wrong healthy ranges label teens obese, dangerously low BMI shown as normal, ignores muscle mass, triggers body-image and ED harm, no sync between devices
向いている人：Adults who want a quick rough BMI check and know its limits, not teens or anyone recovering from an eating disorder
A GLP-1 diary for shots, symptoms, water, protein and weight trend in one place. The idea is good, but you cannot try it, payment is demanded before you can do anything. The food database is weak, portion recognition misses, you can log only one symptom after a shot, and the max weight caps at 330 pounds, which hurts people starting heavier.
評価点：Everything for GLP-1 in one place, shots, protein, water, side effects and weight trend, no jumping between apps. Those it fits praise the ease and clarity.
不満点：Nothing works without a subscription, payment before any action and no trial. Weak food database, one symptom per shot, weight capped at 330 pounds, portion recognition off.
向いている人：People on GLP-1 who need a single diary for shots and side effects and are willing to pay upfront blind, if their starting weight is under 330 pounds.
It is essentially an AI weight-loss coach, but you can barely try it: onboarding asks questions for about ten minutes, then demands a subscription, and there is no way past it without paying. Weight logging, trends and Health or scale sync are impossible to judge, real users never reach those screens. Those who paid report losing weight, but they are a minority.
評価点：People who broke through the paywall mention real weight loss and motivation, some report eight pounds down in three weeks.
不満点：The paywall blocks the whole entrance, subscription ads pop over the screen every few seconds, and the pay button sometimes crashes with an error. Teens without a card simply cannot use it.
向いている人：People ready to pay for an AI coach right away who do not plan to test it for free.
A calculator that looks cute but is wrong about the one thing that matters. Users catch it on incorrect BMI, height cannot be set above five foot nine and has no decimals, so the number matches almost no one. Trends and sync are secondary when the basic math is off, and it even asks for money for it.
評価点：A pleasant look and a positive, supportive tone, simple input, and some teens like the gentle framing that does not pressure the number.
不満点：BMI is calculated incorrectly, height is capped and has no decimals, the basic calculator asks for money, and the app congratulates you on gaining a hundred pounds and mislabels a slim person as overweight.
向いている人：At most people who want a rough weight reference and do not care about accurate BMI.
