Calculator 17 vs QRH MI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
QRH MI
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The application supports pre-flight preparation by calculating weight and balance and takeoff and landing performance for the Mi-171A3 helicopter, taking into account aircraft weight, takeoff and landing conditions, and METAR data. The application also provides information in QRH and flight manual formats.
Screenshots
Verdict
Calculator 17 and QRH MI are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.
| Parameter | Calculator 17 | QRH MI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (987 ratings) — better | — |
| Positive reviews | 21.5% of reviews | — |
| Number of ratings | 987 — better | — |
| Update frequency | Every 4 days | Every 4 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPad, Mac |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | AI APPS SRL | Vega LCC |
Bugs and 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
QRH MI
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator 17
No in-app purchases
QRH MI
No in-app purchases
