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おすすめアプリ:QR & barcode scanners

QR & barcode scanners・30アプリ・5,054件のレビューを分析

アプリについての本文は英語です。

Where scans are fast and the link shows before you tap, and where it is a subscription trap. レビュー本文のスコアが高いのはQrafter(62/100)、Free QR Code Reader simply to scan a QR Code(58)、Barcode Scanner - Price Finder(46)です。

レビュースコア上位5

順位はレビュー本文のスコア(100点満点)順です。★はApp Storeの評価です。評価について

上位3アプリ

  1. レビュー1位

    Qrafter: QR Code Reader

    レビュースコア:62/100。App Storeの評価: 4.6★・3,953件の評価

    One of the few scanners that genuinely lets you create QR codes for multiple data types: contacts, WiFi networks, calendar events, and plain text. It works reliably and handles codes from different countries. One historical low point: a monetization switch that invalidated lifetime purchases users had already paid for. Ads that appear between a scan result and the link you are about to open are a real annoyance.

    評価点

    Wide range of QR code generation types. Scan history is saved. Reliable support for codes from different countries and formats.

    不満点

    Ads are injected between the scan result and the link tap, and sometimes look like the destination page itself. Calendar event generation does not let you set a specific date and time. WiFi QR requires a minimum password length. Lifetime purchases were once revoked after an app update.

    向いている人:Someone who needs to generate several types of QR codes and keep a scan history, and who is willing to put up with ads or pay to remove them.

  2. レビュー2位

    Free QR Code Reader simply to scan a QR Code

    レビュースコア:58/100。App Storeの評価: 4.4★・1,996件の評価

    One of the rare free QR scanners with no forced subscription, and that is the main reason users stay loyal. It scans fast, opens links without intermediate screens, and has worked reliably for years according to long-term users. Weak spots: localization breaks under non-standard regional device settings, and older iPads behave unpredictably. Ads are present but not in an aggressive loop.

    評価点

    Genuinely free with no subscription and no hidden conditions. Instant redirect after scanning. Works on menus, tickets, and documents. Stable across years of use.

    不満点

    Interface language does not switch when the phone has a non-standard regional setting. Date input field bug on iPad. No way to open an App Store link directly from a scan result.

    向いている人:Someone who needs a reliable everyday QR scanner for menus, tickets, documents, and links, without hitting a paywall.

  3. レビュー3位

    Barcode Scanner - Price Finder

    レビュースコア:46/100。App Storeの評価: 4.9★・4,346件の評価

    Focused on price lookup: scan a barcode and it immediately offers to search Google or Amazon. That is a real use case for in-store shopping. Weak point: the product database is incomplete and many codes return no match. The app explicitly collects scan history, which is a real risk if you scan personal documents like a driver's license or passport.

    評価点

    Goes straight to an Amazon price search right after scanning. Scan history is saved for reuse.

    不満点

    Product database is incomplete. Based on reviews, the real hit rate is around 10-20%. PDF417 (driver's license barcode) can be read, but data may be collected per the privacy policy. No name-based search, only by code.

    向いている人:A shopper who wants to quickly check a price on Amazon without leaving the shelf.

4〜30位

  1. Scan QR Code Now

    4位。レビュースコア:44/100。App Storeの評価: 4.6★・11,188件の評価

    The few relevant reviews suggest the app handles basic scanning fine. Complaints center on subscription pricing that goes as high as $520 per year according to one reviewer, not on scanning quality itself.

    評価点:Does what it says quickly: scans codes without extra steps.

    不満点:Subscription price is out of proportion with functionality that free alternatives provide.

    向いている人:Someone who only needs basic scanning and is willing to review the pricing model before installing.

  2. QR Code Generator - MQRG

    5位。レビュースコア:44/100。App Storeの評価: 4.6★・3,483件の評価

    Positioned as a QR code generator with extended types. The real problem: the free tier offers almost no useful functionality, and everything interesting is behind a subscription. Templates do not persist between sessions. In the free version the generated QR code carries a purple watermark that interferes with scanning by other apps. User data is sold to third parties per the privacy policy.

    評価点:Wide selection of QR code types for generation. Multi-link QR lets you direct different users to different URLs.

    不満点:Templates do not save, forcing you to re-enter data every time. You can only export a finished code once. The watermark on free codes blocks other apps from reading them. User data is sold to third parties.

    向いている人:A small business owner or designer who needs dynamic QR codes with click analytics and multiple destination types.

  3. QR Code & Barcode Scanner ・

    6位。レビュースコア:42/100。App Storeの評価: 4.6★・93,108件の評価

    Basic scanning works, history is stored, and URL links open directly. Code generation exists but is almost entirely behind a paywall. The developer has not shipped an update in two years, which is a compatibility risk for newer iOS versions.

    評価点:Scan without extra screens: read a code, get a link, tap it.

    不満点:Code generator is locked behind the paid version. The free tool set comes down to a single action.

    向いている人:Users who only need scanning and have no interest in generation.

  4. Barcode Scanner - QR Scanner

    7位。レビュースコア:40/100。App Storeの評価: 4.5★・41,945件の評価

    Technically fast and accurate: reads old and damaged barcodes. QR generation is included. One real problem: the freemium barrier kicks in after literally a few scans, making the free version non-functional.

    評価点:Reads old and damaged barcodes where other apps give up.

    不満点:The free version is essentially a demo: a handful of scans, then a hard paywall with no way around it.

    向いている人:Users who are willing to pay for a stable, accurate scanner without ads.

  5. QR Code Reader/QR Scanner App

    8位。レビュースコア:38/100。App Storeの評価: 4.7★・139,983件の評価

    The in-app review prompt forces a five-star rating, which is direct manipulation. Basic scanning works, but the flow has regressed after updates. Monetization is aggressive with stacked popups.

    評価点:Simple QR-based login instead of typing a username and password.

    不満点:After an update, the automatic redirect after scanning was removed. You now need a manual step, which is annoying during repeated use.

    向いている人:Users who need basic scanning for account logins and do not mind dealing with popups.

  6. QR Pro - QR Code Scanner

    9位。レビュースコア:38/100。App Storeの評価: 4.5★・27,192件の評価

    The app shows you the code content before you follow a link, which is a genuine plus. But batch scanning was removed in updates, and the scanner now grabs the first code in frame without waiting for you to aim. The functional minimum works, but the app degrades with each update.

    評価点:Preview of link content before following it. Users appreciate the ability to decide where they are going.

    不満点:Batch scanning mode was removed. Every scan now opens a separate screen. The scanner does not wait for you to aim and immediately captures the first code in view.

    向いている人:Someone who wants to see a URL before tapping it and does not work with a stream of codes.

  7. QR Code Reader + QR Scanner

    10位。レビュースコア:38/100。App Storeの評価: 4.4★・6,755件の評価

    A basic QR and barcode scanner with no notable advantages. The only workable scenario is a one-off scan, after which the app prompts for a rating. The scan result is displayed as static text with no way to open the link or copy it. Users who paid to remove ads still see them.

    評価点:Instant code reading in normal lighting conditions.

    不満点:The scan result cannot be copied or opened as a link. The 'remove ads' purchase does not actually remove ads. No scan history, no batch mode for any kind of real use.

    向いている人:Someone who needs to read a code once and manually type out the URL.

  8. QR Code Reader & Code Scanner

    11位。レビュースコア:36/100。App Storeの評価: 4.3★・45,770件の評価

    Scanning works and recognizes UPC codes without perfect framing, which is a real advantage. QR generation is present with useful types like contacts and URLs. But a wall of ads between scans turns every use into a test of patience.

    評価点:Recognizes UPC codes without perfectly aligning the frame. Works well on the move and in low light.

    不満点:A mandatory ad appears after every scan with no way to move to the next code without interruption.

    向いている人:Users who occasionally need to scan product barcodes while shopping.

  9. QR Code Reader ·

    12位。レビュースコア:32/100。App Storeの評価: 4.7★・668,710件の評価

    Used to be fast. Performance degraded after monetization. Ads are embedded aggressively and cover action buttons. Basic QR scanning still works, but the interface is increasingly built around conversion rather than the task.

    評価点:Historically fast auto-recognition of a code without extra taps.

    不満点:After updates, scanning stopped being automatic. A manual submit is now required, breaking the familiar flow.

    向いている人:Users who need one quick scan every few months and do not mind putting up with ads.

  10. QR, Barcode Scanner for iPhone

    13位。レビュースコア:31/100。App Storeの評価: 4.6★・49,555件の評価

    The App Store rating is completely disconnected from real user experience. A textAvg of 1.72 speaks for itself. What is real: scanning works, generation is included, history is saved. But the UX is primitive, support is absent, and the interface has not been updated.

    評価点:Works without a mandatory trial and without forcing a purchase for basic scanning.

    不満点:Deleted codes cannot be recovered. There is no backup or trash folder.

    向いている人:Older users who need the simplest possible scan with no extra features.

  11. QR Reader for mobile

    14位。レビュースコア:31/100。App Storeの評価: 4.6★・9,771件の評価

    Based on the few on-topic reviews: the app can scan barcodes, but the interface is confusing. Users report difficulty canceling a trial and being charged after deleting the app.

    評価点:Basic scanning works. One user noted a successful first barcode scan.

    不満点:Interface causes confusion. The subscription mechanic is opaque. Hard to figure out without instructions.

    向いている人:Hard to recommend. Too little data on real scanning experience.

  12. Barcode Scanner QR Code Reader

    15位。レビュースコア:31/100。App Storeの評価: 4.5★・2,102件の評価

    The app gates basic features behind a paywall and, based on several reviews, asks for a high rating as a condition of access. Users who made it past that barrier note the scanning speed and support for multiple code types. Price comparison via Amazon and eBay leads to a generic search result rather than the specific product. History is saved with a photo.

    評価点:Saves a scan with a photo of the product. Supports multiple code types. Fast camera response. Works as an inventory tool.

    不満点:Forcing a rating as a condition of feature access is manipulation of the App Store review system. Amazon price lookup leads to a generic search, not the specific product. Part of the interface appears in Chinese with no language option.

    向いている人:Someone who needs photo-based inventory with export capability, if they can get through the monetization barriers.

  13. QR Code Reader,Barcode Scanner

    16位。レビュースコア:29/100。App Storeの評価: 4.7★・68,851件の評価

    Aggressive monetization with deliberately hidden ad controls. Basic barcode scanning works per reviews, QR is unreliable. A predatory billing pattern is confirmed.

    評価点:Barcode scanning works reliably even in the basic mode.

    不満点:The ad close button is intentionally colored to match the background image, a dark pattern.

    向いている人:Not recommended for anyone.

  14. QR Code Generator, QR Template

    17位。レビュースコア:29/100。App Storeの評価: 4.8★・17,181件の評価

    A QR code generator with a template library. Basic generation works, but most interesting options like a logo inside the code, dynamic links, and cloud upload are locked behind a paid subscription. Support does not respond to emails.

    評価点:Quickly creates a simple QR code from a link or text with no extra steps.

    不満点:After paying for a subscription, some features remain inaccessible or break. Support goes silent for weeks.

    向いている人:Someone who needs a one-time static QR code with no branding. The free version is enough for that.

  15. QR Reader for iPhone

    18位。レビュースコア:28/100。App Storeの評価: 4.7★・1,419,060件の評価

    The app exists, but its rating was not built by its actual users. From the real signals: basic scanning works, history is present, but aggressive subscription prompts push people away. The product's reliability cannot be meaningfully assessed from the available data.

    評価点:Long-term users note stable basic scanning without degradation over time.

    不満点:No transparency when a trial ends. Users do not understand when the paid subscription started.

  16. QR Code Scanner · Barcode

    19位。レビュースコア:28/100。App Storeの評価: 4.4★・2,597件の評価

    The app works inconsistently and is aggressively monetized through ads. Users report camera aiming errors, inability to create custom QR codes (only from a fixed template list), and a limit of one free generation. Ad load is extreme, reportedly more than 12 impressions in two minutes per one tester. Basic QR scanning sometimes works but is unreliable.

    評価点:Opens links quickly when a scan succeeds. Includes a manual barcode entry option.

    不満点:Camera does not always lock onto the target code. Code generation is limited to templates with no custom content. An ad appears after every action. Push notifications arrive even when the app is not in use.

    向いている人:Hard to identify a target user. Too many barriers for basic use. Users leave quickly for alternatives.

  17. QR Code Reader: Quick Scan

    20位。レビュースコア:22/100。App Storeの評価: 4.7★・158,741件の評価

    High probability of paid a storefront star that diverges from review text plus a confirmed phishing case via in-app advertising. This product is dangerous.

    評価点:Built-in browser and the ability to choose which external app opens a link.

    不満点:An ad disguises itself as a UI button and leads to phishing sites.

    向いている人:Not recommended for anyone.

  18. QR Code Barcode Scanner & Read

    21位。レビュースコア:22/100。App Storeの評価: 4.3★・3,494件の評価

    The one confirmed use case is scanning a store barcode for a rough price estimate. Ads appear after every interaction: on open, on tab switch, before and after showing a result. Niche scenarios like scanning Nike shoe codes do not work. Price lookup returns no result for most items.

    評価点:Basic barcode scanning in a store sometimes works for a quick price check.

    不満点:Ads at every step make the interface nearly unusable without paying. Price database is incomplete, most scans return nothing. Push notifications include spam like 'Lisa wants you'.

    向いている人:Not applicable.

  19. QR Code: Reader & Generator

    22位。レビュースコア:15/100。App Storeの評価: 4.5★・12,665件の評価

    The app does not let you reach the scanner without agreeing to a trial. Small QR codes under about a centimeter cannot be read. The subscription activates without explicit user confirmation, and users report unexpected charges.

    評価点:When scanning does launch, users describe the process as fast and simple.

    不満点:The subscription prompt appears before any action in the app. Small codes are not recognized.

    向いている人:Not recommended. Aggressive monetization blocks access to the basic function.

  20. Qr-Code Scanner & Creator App

    23位。レビュースコア:15/100。App Storeの評価: 4.5★・3,556件の評価

    Almost no real functional content is visible in the reviews. From the few functional observations: the QR generation button sends you to a Google search instead of creating a code, and access to scanning is blocked without a subscription. The app locks the user out after the first free scan.

    評価点:Not applicable. Insufficient data.

    不満点:Requires a subscription to continue after the first use. The first scan can take several minutes and return nothing. The QR code creation feature opens a browser instead of generating a code inside the app.

    向いている人:Not applicable.

  21. QR Code Reader*Barcode Scanner

    24位。レビュースコア:12/100。App Storeの評価: 4.5★・21,719件の評価

    Basic scanning is unreliable. The app returns 'unknown' on most barcodes. Free access is limited to a few scans and then requires payment. Many irrelevant reviews in the corpus.

    評価点:Quick setup and launch. Some users note everything worked on the first try.

    不満点:Barcodes are recognized poorly or not at all. The free scan limit is not disclosed at install.

  22. QR Code Scanner & AI Generator

    25位。レビュースコア:12/100。App Storeの評価: 4.6★・6,188件の評価

    Almost nothing can be said about how this app actually works. Honest, substantive reviews are nearly nonexistent. The few that exist say it is slow, it costs money, and an older version was better. AI QR code generation in the title is clearly the key marketing claim, but no reviews confirm any real value from it.

    評価点:Not applicable. Insufficient data.

    不満点:Not applicable. Insufficient data.

    向いている人:Not applicable. Insufficient data.

  23. QR Code Reader, Barcode Scan

    26位。レビュースコア:10/100。App Storeの評価: 4.5★・7,444件の評価

    Everything is behind a paywall. Even basic barcode scanning requires a subscription. The app activates a trial silently and then charges $7.99 per week. Scanning QR codes from screenshots (the photo library) does not work without paying.

    評価点:When the scanner does work, users say it reads codes quickly and accurately. One user found it useful at a salvage yard.

    不満点:A subscription screen appears before any attempt to use the app. Scanning from an image is not available without payment.

    向いている人:Not recommended in its current state.

  24. QR Code & Barcode Scanner app.

    27位。レビュースコア:8/100。App Storeの評価: 4.7★・5,166件の評価

    The app uses a dark subscription pattern: users do not realize a paid period has started, cannot find a cancel button inside the app, and keep getting charged after deleting it. Actual scanning is barely discussed in reviews. The problem is not the engine quality. Users leave before doing a single real scan.

    評価点:Not applicable. Insufficient data.

    不満点:Subscription activates implicitly through a three-day trial. Cancellation is not available in app settings, only through Apple ID. Charges continue after deletion.

    向いている人:Not applicable.

  25. QR Code Reader, Scan Barcode

    28位。レビュースコア:6/100。App Storeの評価: 4.6★・3,403件の評価

    Based on real reviews, the app functions primarily as an ad delivery vehicle with a minimal scanner inside. Ads appear after every action: on open, on tab switch, before scanning, after the result. A dark subscription pattern is documented, with users reporting $7 per week charges without clear consent. Actual scanning either does not work or produces obvious results that the phone camera handles just as well.

    評価点:Not applicable. Insufficient data.

    不満点:Ads literally at every step. Dark pattern during trial activation. Scanner functionality does not exceed the iPhone's built-in camera.

    向いている人:Not applicable.

  26. Scan QR Code.

    29位。レビュースコア:5/100。App Storeの評価: 4.7★・15,666件の評価

    Based on reviews, the app either does not scan at all or launches a hidden subscription immediately after installation. Actually testing the scanning is nearly impossible because a payment prompt fills the screen.

    評価点:Nothing specific can be identified from real reviews.

    不満点:A hidden subscription activates on first launch. Actual scanning does not work for most users.

    向いている人:Not recommended for anyone.

  27. SkyBlueScan: QR Code Scanner

    30位。レビュースコア:5/100。App Storeの評価: 4.6★・4,002件の評価

    Based on review content, this app functions primarily as a subscription trap. Users write exclusively about being unable to unsubscribe, being charged without consent, and being billed after deleting the app. There are no real observations about scanning quality at all.

    評価点:Not applicable. Insufficient data.

    不満点:Subscription activates without any clear indication. No cancel button is found inside the app. Documented cases of $50 charges without pressing any confirmation button. App continues billing after deletion.

    向いている人:Not applicable.

評価について

二つの評価——二つの出どころ

アプリを比べる助けにはなりますが、自分の課題で確かめることの代わりにはなりません。

レビュースコア · 100点満点

レビュー本文についてのinAppのリサーチから保存されたスコアです。アーカイブ内でのアプリ全体の評価であり、個々の機能の信頼性の点数ではありません。

ストア評価 · 5点満点

データを集めた時点のアプリページの評価です。現在の評価やバージョンは異なる場合があります。

このテーマのアーカイブ標本:アプリ30件、読んだレビュー5,054件。これはリサーチ全体の規模であり、アプリごとのレビュー数ではありません。

評価の差は不正な操作の証拠にはなりません。算出日とスコアの詳しい方法はモバイル版のアーカイブに含まれていません。課題の説明と元の引用を見比べ、条件は現在のバージョンで確かめてください。

レビューが結論になるまでコーパス、トピック、ラベル付けの限界
このテーマのレビュー各レビューの全文、評価、トピック

評価と結論は保存されたレビューにもとづきます。アプリの現在のバージョンは変わっている場合があります。