Calculator + vs Calculator 17
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator +
This advanced calculator offers multiple calculation modes, a persistent history log, and customizable themes. It functions offline and is compatible with Mac devices, providing a comprehensive tool for various mathematical needs.
- Multiple calculator modes
- Calculation history log
- Customizable color themes
- Global comma formatting
- Offline functionality
- Mac compatibility
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******* 30%OFF ******* ******* Compatible with Mac App. ******* No advertisement. ******* No Internet Connection Required. ******* FullVersion. ******* You can move or check the calculation data of other calculators. ******* Data persistence. 1. TwinCalculator - 6 Calculator 2. Calculation History 3. Color (Basic) (Seashore) (Art Deco) (Cute) (Redon) (Gitanes) 4. Global Comma (0,000,000.0) (0,000,000·0) (0.000.000,0) (0’000’000.0) (0 000 000,0) (0,00,00,000.0) (0,0000,0000.0)
Calculator 17
This app offers a user-friendly calculator with basic and scientific modes. Access calculations instantly via a home screen widget and review past computations in a saved history.
- User-friendly interface
- Basic and scientific modes
- Home screen widget
- LiveActivity Standby for iPhone
- Calculation history
- Customizable themes
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Introducing Calculator 17, the ultimate tool for all your math needs on the go! *** - User-Friendly: Calculator 17 makes math feel easy and quick, perfect for both school tasks and daily math jobs. *** - Various Modes: Whether it's basic addition or advanced calculations, we have you covered. Switch between the simple calculator and Scientific mode easily. *** - Instant Access: No more searching for the app. With our homescreen widget and LiveActivity Standby for iPhone, perform calculations directly on your main screen, all while choosing from a variety of fun themes. *** - Never Forget: Your calculations are always saved in our handy history tab. Want to share or copy them? It's just one tap away. Calculator 17 isn’t just another math app. It’s your trusty helper, ready to handle any math challenge. Whether you're a student in need of a school calculator or someone who loves playing with numbers, our calculator is the perfect fit.
Screenshots
Verdict
The clearest difference is price: Calculator 17 at Free against Calculator +'s $3.99. Calculator 17 also leads on update cadence (every 4 days vs every 3 months) and ratings volume (971 vs 13). Calculator +'s advantage is review sentiment (33% vs 22%) and iOS requirement (9.0 vs 16.0). On rating, ads, in-app purchases 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
Calculator 17 is free to download; Calculator + costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Calculator 17 holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Calculator 17 has 971 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 33% of Calculator +'s written reviews are positive against 22% of Calculator 17's, so the app with the better star average is not the one people write more warmly about.
Calculator + ships an update every 3 months, Calculator 17 every 4 days. The most recent releases landed on September 20, 2026 and September 17, 2026 respectively.
| Parameter | Calculator + | Calculator 17 |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.4 (13 ratings) | 4.6 (971 ratings) — better |
| Positive reviews | 33.3% of reviews — better | 21.5% of reviews |
| Number of ratings | 13 | 971 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 5 MB |
| Age rating | +4 | 4+ |
| Developer | Satomi Uchida | AI APPS SRL |
Customer experience
Calculator +
Calculator 17
Bugs and requests
Calculator +
Not enough reviews yet to summarise bugs or requests.
Calculator 17
Reported bugs
3 issues- Widget shows up blank
- Numerical display is cut off
- Significant delay between key presses and display update
Requested features
3 requests- Add landscape mode support
- Improve widget responsiveness
- Increase bracket functionality
In-app purchases
Calculator +
No in-app purchases
Calculator 17
No in-app purchases
