Calc² vs Solves
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc²
A customizable, one-handed calculator designed for iPad. Easily switch layouts for left-handed use and adjust decimal places and animations. Personalize themes that also change the app icon.
- One-handed typing support
- Left-handed layout option
- Copy/Paste functionality
- Calculation history
- Customizable themes and app icons
- Adjustable decimal places
- Adjustable animations
Read full descriptionHide full description
Calc² is a minimalistic calculator for the iPad that offers plenty of customization to cater to your own style. The number pad is designed so that you can hold the iPad and type with one hand, and if you are left-handed, you can move the number pad to the left. Calc² features: •Left handed supported •One-Handed supported •Copy/Paste support •History •Themes that also change the App Icon •Adjustable decmail places •Adjustable animations •Landscape/Portrait support
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
Read full descriptionHide full description
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Calc² at none against Solves's 6. Calc² also leads on update cadence (every 11 days vs every 3 weeks) and iOS requirement (11.2 vs 15). Solves's advantage is ratings volume (381 vs 2). On price, rating, 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
Both are free to download. Solves sells 6 one-off in-app purchases. Calc² asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Calc² against 4.9 for Solves. That said, the two scores are not equally well evidenced: Solves has 381 ratings behind it against 2, so its average is the more settled of the two.
Calc² ships an update every 11 days, Solves every 3 weeks. The most recent releases landed on September 18, 2026 and September 28, 2026 respectively.
| Parameter | Calc² | Solves |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (381 ratings) |
| Positive reviews | — | 90.6% of reviews |
| Number of ratings | 2 | 381 — better |
| Update frequency | Every 11 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Mac, Apple Watch — better |
| Requires iOS | 11.2 — better | 15 |
| Further details — not scored | ||
| Size | 24 MB | 82 MB |
| Age rating | 4+ | 4+ |
| Developer | Manar Alhamdy | Oleg Barinov |
Customer experience
Calc²
Solves
Bugs and requests
Calc²
Not enough reviews yet to summarise bugs or 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
Show 1 moreShow fewer
- Improve unit conversion experience
In-app purchases
Calc²
No in-app purchases
Solves
- Tip Option #1$0.99
- Tip Option #2$1.99
- Tip Option #3$4.99
Show 3 moreShow fewer
- Tip Option #4$9.99
- Solves+$9.99
- Tip Option #5$19.99
