Solves vs Qnum › Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solves
A powerful and versatile calculator for all your Apple devices. Edit complex expressions, sync history across devices, and enjoy a clean, ad-free experience. Unlock advanced features like unit conversion and fraction support with an optional upgrade.
- Edit expressions without limitations
- Instant results
- Sync calculation history across devices
- Unit conversion (currencies, physical units)
- Fraction support
- Customizable themes
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Solves is a well-made calculator app for your iPhone, iPad, Mac, and Apple Watch. It allows you to edit expressions without limitations and get instant results. It keeps your calculation history in sync on all devices and lets you to easily interact with it. All this for free and without ads! By purchasing Solves+ you also get: • Unit Conversions: currencies (with crypto, metals & energy), physical units, and your own! • History Tools: comment, bookmark, export, auto clear, and more • Fractions • More Themes • Advanced Settings Hand-typed code. No generative AI was used during the development or by the app itself. Solves+ requires one payment only. You will own it forever on all devices.
Qnum › Calculator
This utility app allows for multi-screen calculations, letting you switch between screens to continue equations without clearing previous work. Save notes, copy values, and access calculation history easily.
- Multiple calculation screens (up to 8)
- Duplicate and edit existing screens
- Carry over variables or results to new screens
- Assign shortcut keys to functions
- Copy values and access calculation history
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Swipe to the next screen and continue on that screen without having to clear your equation. It's that effective and easy! Stop taking notes; switch between screens for values you can not remember, copy the value or keep working on that history. Qnum › Calculator | Multi-Screen Experience The most flexible and powerful way of the calculation process. Features ∙ Create Screens up to 8 ∙ Duplicate current screen ∙ Edit any variables of the equations ∙ Start new screen with equation variable or equation result ∙ Assign shortcut keys to the Function (fn) button Advert Policy In Qnum › Calculator, there are no surprise ads that pop up suddenly. As exception, classic (banner) ads are shown. The billboard is positioned only on the top edge of the home screen, without affecting the design. On the other hand, it has the same abilities and features as the paid version. Optionally, the ad-free version is available separately. To reach this, you can go to the developer page or start a new search with the name Qnum. Thank you for your interest | Qnum
Screenshots
Verdict
The clearest difference is review sentiment: Solves at 91% against Qnum › Calculator's 40%. Solves also leads on update cadence (every 3 weeks vs every 3 months) and ratings volume (382 vs 10). Qnum › Calculator's advantage is in-app purchases (none vs 6) and iOS requirement (9.3 vs 15). On price and ads 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. Solves sells 6 one-off in-app purchases. Qnum › Calculator asks for nothing beyond the download.
Solves holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Solves has 382 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 91% of Solves's written reviews are positive against 40% of Qnum › Calculator's.
Solves ships an update every 3 weeks, Qnum › Calculator every 3 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | Solves | Qnum › Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (382 ratings) — better | 4.7 (10 ratings) |
| Positive reviews | 90.6% of reviews — better | 40.0% of reviews |
| Number of ratings | 382 — better | 10 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod, Mac, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15 | 9.3 — better |
| Further details — not scored | ||
| Size | 82 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleg Barinov | Ahmet Orhan Tohma |
Customer experience
Solves
Qnum › Calculator
Bugs and requests
Solves
Reported bugs
4 issues- Crashes when pressing certain buttons
- Issues with parsing complex expressions
- Incorrect results for some calculations
- Problems with history clearing or syncing
Requested features
6 requests- Add support for fractions and mixed numbers
- Implement a widget for quick access
- Allow resizing the app window on Mac
- Provide more customization options
- Add support for Apple Watch
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- Improve unit conversion experience
Qnum › Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Solves
- Tip Option #1$0.99
- Tip Option #2$1.99
- Tip Option #3$4.99
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- Tip Option #4$9.99
- Solves+$9.99
- Tip Option #5$19.99
Qnum › Calculator
No in-app purchases
