Brain training calculator vs QR Mastery
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brain training calculator
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Every time the user presses a number key, all number keys disappear and their arrangement changes. Entering numbers can be hectic and requires concentration and patience. Users can exercise their brains and keep themselves busy. ＜モードオン・オフ＞ 隠すモードボタンを押す。 ※普通の電卓に戻る場合は、ボタンを再度押す。
QR Mastery
Instantly scan and create custom QR codes for various purposes. This app supports barcode scanning, offers a scan history, and allows for gallery imports. Personalize your experience with beautiful themes and unlock premium features for an enhanced QR code management solution.
- Instant QR code scanning
- Barcode format support
- Custom QR code creation
- Scan history tracking
- Gallery image import
- App theme customization
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QR Mastery is your all-in-one QR code solution. Scan any QR code instantly with our lightning-fast camera scanner, create stunning custom QR codes for your business or personal use, and easily share them anywhere. KEY FEATURES: • INSTANT QR SCANNING Scan QR codes in a flash with our optimized camera technology. Works in low light and with damaged codes. • BARCODE SUPPORT Scan all major barcode formats including EAN, UPC, Code 128, and more. • CUSTOM QR CREATION Generate beautiful QR codes for URLs, text, WiFi networks, contacts, and more. Customize colors and designs. • SCAN HISTORY Keep track of all your scanned codes. Never lose important information again. • GALLERY IMPORT Scan QR codes from images in your photo library. • BEAUTIFUL THEMES Personalize your app with 14 stunning theme presets. • PREMIUM FEATURES Unlock unlimited scanning, ad-free experience, and advanced customization options. Download QR Mastery today and take control of your QR code experience! SUBSCRIPTION INFORMATION: • Weekly subscription with 3-day free trial • Monthly and yearly plans available • Payment charged to iTunes Account at confirmation • Subscription auto-renews unless canceled 24 hours before period end • Manage subscriptions in Account Settings Terms of Use: https://waresoul.org/qr/terms Privacy Policy: https://waresoul.org/qr/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: Brain training calculator at none against QR Mastery's 3. Brain training calculator also leads on device support (3 vs 1) and iOS requirement (15.8.3 vs 26.0). QR Mastery's advantage is ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). On price there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. QR Mastery sells 3 in-app purchases, starting at $9.99 per 7 days. Brain training calculator asks for nothing beyond the download.
Brain training calculator ships an update every 2 weeks, QR Mastery every 3 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.
| Parameter | Brain training calculator | QR Mastery |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (58 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 58 — better |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.8.3 — better | 26.0 |
| Further details — not scored | ||
| Size | 35 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Hideaki Uchikoshi | WARESOUL |
In-app purchases
Brain training calculator
No in-app purchases
QR Mastery
- Premium Weekly3 Days trial$9.997 Days
- Premium Monthly$19.991 Month
- Premium Yearly7 Days trial$24.901 Year
Questions
Is Brain training calculator free?
Is QR Mastery free?
Do Brain training calculator or QR Mastery have ads?
Which is updated more often, Brain training calculator or QR Mastery?
Other comparisons
