CALC Smart Calculator ± vs Qr Code Reader & Scanner ZapQR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CALC Smart Calculator ±
This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.
- Real-time results
- Unit and currency conversions
- Custom functions and constants
- Shareable calculation history
- Landscape mode with tape-roll
- Gratuity calculator
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Why Choose CALC Smart? ► Used by Scientists, Professionals and Students alike ► Apple-Featured: Spotlighted in Utilities and Calculate & Convert. ► User-Loved: Over 10k+ global reviews and 200M+ sessions validate its utility. ► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI. Ready for the Latest OS * Multitask on your iPad and use 3D Touch shortcuts. * Search your calculation history with Spotlight. * Widget with history integration. * Apple Watch support, complete with haptic feedback and complications. Top 10 Unique Features ① Real-time results, even with incomplete parentheses. ② Landscape mode for shareable history and tape-roll. ③ Optimized custom keyboard & widget to save space and time. ④ Fast unit and currency conversions—a swipe away. ⑤ Quick gratuity calculator with rounding options. ⑥ Display decimals as fractions with 1/999 precision. ⑦ Create unlimited custom functions and constants. ⑧ Easy expression sharing via link. ⑨ Built-in timer. ⑩ Limitless themes and layouts. Why Users Love CALC * Live Math: Natural input, even for complex calculations. * Swipe Functions: Over 60 advanced math functions just a swipe away. * History: Never lose track of your calculations. * Conversion: 21 categories, plus custom options. Additional Features * Edit on the Fly: Long-press to modify expressions and numbers. * Audio Feedback: Customize tapping sounds. * Styling: Multiple font choices. * Enterprise-Ready: EMM support with MDM & AppConfig. We Listen * Frequent updates based on your feedback. Got a suggestion? Visit our UserVoice page: https://QApps.UserVoice.com Custom Background Tip * Design your own CALC background with images from NASA’s multimedia library: https://nasa.gov/multimedia Terms & Usage * Using this app means agreeing to the standard Terms of Use. Standard Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Qr Code Reader & Scanner ZapQR
This app allows you to quickly scan and generate QR codes for various purposes, including website links, Wi-Fi credentials, and contact information. It offers a user-friendly interface, organizational tools, and secure on-device processing for your data.
- Scan QR codes for URLs, Wi-Fi, contacts, and more
- Generate QR codes for websites, contacts, Wi-Fi, and text
- Organize and manage scanned and generated codes
- Share codes instantly via messaging, email, or other apps
- Dark mode and clean user interface
- On-device processing for enhanced privacy
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Effortlessly Scan, Generate & Manage QR Codes with ZapQR Experience the power and convenience of ZapQR, your all-in-one app for seamless QR code scanning, generation, and storage. Whether it's scanning menus, connecting to Wi-Fi, saving contacts, or creating your own QR codes, ZapQR delivers speed, precision, and simplicity. Why You’ll Love ZapQR: • Blazing-Fast Scanning: Point, scan, and go. ZapQR supports URLs, Wi-Fi credentials, contact cards, text, emails, phone numbers, SMS, calendar invites, and barcodes. • Create QR Codes in Seconds: Generate codes for URLs, contacts, Wi-Fi, text notes, and more—customize and save them instantly. • Organize with Ease: Store your generated and scanned codes in a neat, searchable library. Pick, edit, or share with ease. • Share Instantly: Save to Photos, share via messaging or email, or export to other apps with a tap. • Dark Mode & Clean UI: Modern, user-friendly interface that’s light on the eyes and optimized for all devices. • Privacy You Can Trust: ZapQR processes everything on-device—your scans and data stay private and secure. Tap into Productivity with ZapQR: Scan codes to instantly launch websites or access deeper app integrations. Generate secure Wi-Fi QR codes so guests can connect effortlessly. Share contact vCards with one simple code. Keep important links or notes always within reach. What's New in ZapQR: Improved scanning accuracy across varied lighting scenarios. Smarter code recognition—even from images or screen captures. Enhanced library sorting and powerful search functionality. UI refinements for smoother navigation. Legal Privacy Policy: https://www.firebolt.page/multiscanner/privacy-policy Terms of Use: https://www.firebolt.page/policy/terms-of-use
Screenshots
Verdict
The clearest difference is review sentiment: CALC Smart Calculator ± at 87% against Qr Code Reader & Scanner ZapQR's 14%. CALC Smart Calculator ± also leads on rating (4.8 vs 4.4) and ratings volume (2.4K vs 100). Qr Code Reader & Scanner ZapQR's advantage is iOS requirement (15.4 vs 17.0). On price, update cadence, ads and in-app purchases 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. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months and Qr Code Reader & Scanner ZapQR sells 3 in-app purchases, starting at $2.29 per 7 days. Whichever you choose, the download price is not the number that matters.
CALC Smart Calculator ± holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: CALC Smart Calculator ± has 2.4K ratings behind it against 100, so its average is the more settled of the two. Written reviews point the same way: 87% of CALC Smart Calculator ±'s written reviews are positive against 14% of Qr Code Reader & Scanner ZapQR's.
CALC Smart Calculator ± ships an update fortnightly, Qr Code Reader & Scanner ZapQR weekly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | CALC Smart Calculator ± | Qr Code Reader & Scanner ZapQR |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (2.4K ratings) — better | 4.4 (100 ratings) |
| Positive reviews | 87.2% of reviews — better | 14.3% of reviews |
| Number of ratings | 2.4K — better | 100 |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 15.4 — better |
| Further details — not scored | ||
| Size | 16 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | QApps LLC | Firebolt Online, LLC |
Customer experience
CALC Smart Calculator ±
Qr Code Reader & Scanner ZapQR
Bugs and requests
CALC Smart Calculator ±
Reported bugs
3 issues- Calculation errors in certain scenarios
- Forced tutorial popup on every launch
- Unreliable widget functionality
Requested features
4 requests- Ability to easily clear calculation history
- Option to customize button layout
- Support for entering hexadecimal numbers
- Integration with other apps and services
Qr Code Reader & Scanner ZapQR
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CALC Smart Calculator ±
- Quarterly Supporter$0.993 Months
- Quarterly Supporter7 Days trial$1.993 Months
- Annual Contributor$2.991 Year
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- Annual Contributor7 Days trial$5.991 Year
Qr Code Reader & Scanner ZapQR
- Weekly$2.297 Days
- Yearly$9.891 Year
- Lifetime$19.99
Questions
Is CALC Smart Calculator ± free?
Is Qr Code Reader & Scanner ZapQR free?
Which has better reviews, CALC Smart Calculator ± or Qr Code Reader & Scanner ZapQR?
Do CALC Smart Calculator ± or Qr Code Reader & Scanner ZapQR have ads?
Which is updated more often, CALC Smart Calculator ± or Qr Code Reader & Scanner ZapQR?
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