Calculator Plus vs QR Barcode Scanner Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Plus
This app simplifies everyday math with a clean interface and a history of all your calculations. Easily handle basic operations, percentages, and more, with the ability to review past entries for quick reference. It's designed for efficient problem-solving on the go.
- Clear, readable calculation display
- Basic arithmetic and percentages
- Backspace for error correction
- Memory buttons and calculation history
- Light and dark themes
- Advanced functions (squaring, square root, pi)
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The world’s favorite calculator app, with more than 40 million downloads worldwide. The perfect day-to-day calculator for both iPhone and iPad, Calculator Plus is easy to use and beautifully designed to be your daily calculator. Calculator Plus makes math simple and fun with crisp HD and a layout for fast and easy calculations. Solve all of your everyday calculations, from simple addition to fractions and multiplication. Calculator Plus remembers everything you calculate, and lets you review your history and past calculations anytime, making it perfect for shopping, doing homework and schoolwork, balancing checkbooks, making tips, taking notes, calculating taxes, and everyday math problems you’re sure to encounter. Calculator Plus is also an exceptional school calculator. Calculator Plus is the perfect calculator for teachers, students, and working professionals. If you quit the calculator and go do something else, it's all still there whenever you come back. You'll never need to type the same calculation twice again making it the perfect math calculator to take the best notes and solve any problem. FEATURES: - Calculations in clear, elegant type that's easy to read - Perform all the basic calculations you could ever need including addition, subtraction, division, multiplication, and percentages - Use backspace anytime to correct a simple mistake, instead of starting over - Keep track of your results using the memory buttons and history screen - Express yourself with light and dark themes - For more complicated and advanced problems, use options like squaring, square root, percent and the pi button Try out Calculator Plus – the simplest, strongest equation solver around! From everyday addition and subtraction to complex percent and fraction problems, you can solve and track it all for free. Download Calculator Plus for your iPhone or iPad and finally put that handheld calculator to rest. This version of Calculator Plus is ad-supported. An ad-free version is also available. Calculator Plus © 2022 Digitalchemy, LLC
QR Barcode Scanner Reader
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Scan any QR code or barcode free, unlimited — from your camera or straight from a photo. Create your own codes for Wi-Fi, contacts, URLs, and more. 100% offline, no account, no ads, no subscription. WHY THIS APP Most QR scanner apps push a monthly subscription just to scan. This app's core scanning is free, unlimited, forever. Want more — Wi-Fi/contact code creation, unlimited photo scanning, custom colors? A single $4.99 purchase unlocks it all, permanently. FREE • Unlimited live camera scanning — QR, Aztec, Data Matrix, PDF417, EAN-13, UPC-A, Code 128, and more (15+ formats) • Scan from photos — 3 per day • Create QR codes for URLs and plain text • Smart actions: a Wi-Fi code connects with one tap, a URL opens in your browser, a contact card saves to your address book • Recent 10 scans in history PRO — $4.99, ONE-TIME • Unlimited scan from photos • Create QR codes for Wi-Fi, vCard contacts, email, phone, SMS, calendar events, and locations • Custom QR colors and a center logo • Unlimited history and favorites Not a subscription — pay once, nothing auto-renews, nothing to cancel. SCAN FROM PHOTOS Got a screenshot of a QR code? Pick it from your photo library and the app identifies it automatically — useful for QR codes friends sent you, saved Wi-Fi cards, or payment codes. Most scanner apps only work with a live camera; this one also reads photos. 100% PRIVACY • No account, no cloud, no tracking • Every scan and every code you create is processed on this iPhone only • Wi-Fi passwords go through Apple's own network framework — we never see them REQUIREMENTS • iOS 17.0 or later • Camera access for live scanning • Photo Library access (optional, to scan from images) • Local Network access (optional, for one-tap Wi-Fi connect) Terms of Use: https://taxlite.net/simple_qr_scanner_pro/terms.html Privacy Policy: https://taxlite.net/simple_qr_scanner_pro/privacy.html
Screenshots
Verdict
The clearest difference is price: QR Barcode Scanner Reader at Free against Calculator Plus's $3.99. Calculator Plus's advantage is in-app purchases (none vs 3) and iOS requirement (15 vs 17.0). On update cadence, ads and device support 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
QR Barcode Scanner Reader is free to download; Calculator Plus costs $3.99 up front. QR Barcode Scanner Reader sells 3 in-app purchases, starting at $4.99 per month. Calculator Plus asks for nothing beyond the download.
Calculator Plus ships an update every 5 weeks, QR Barcode Scanner Reader every 2 months. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.
| Parameter | Calculator Plus | QR Barcode Scanner Reader |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.9 (694 ratings) — better | — |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 694 — better | — |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15 — better | 17.0 |
| Further details — not scored | ||
| Size | 71 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | DigitAlchemy LLC | ZHENGQIAO JIANG |
Bugs and requests
Calculator Plus
Reported bugs
2 issues- Clicking sound not removable
- Compatibility issues on older devices
Requested features
3 requests- Dark mode option
- Algebraic order of operations
- Customizable color schemes
QR Barcode Scanner Reader
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator Plus
No in-app purchases
QR Barcode Scanner Reader
- Pro Monthly3 Days trial$4.991 Month
- Pro Yearly$29.991 Year
- Pro Lifetime$79.99
Questions
Is Calculator Plus free?
Is QR Barcode Scanner Reader free?
Do Calculator Plus or QR Barcode Scanner Reader have ads?
Which is updated more often, Calculator Plus or QR Barcode Scanner Reader?
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