Pythagoras Interactive vs COMath Premium
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pythagoras Interactive
Explore the Pythagorean Theorem with an interactive visual tool. Adjust triangle legs to observe real-time changes in square areas and hypotenuse length. Distances are displayed in radical form when necessary.
- Interactive triangle manipulation
- Visual representation of squares on sides
- Real-time updates to hypotenuse and areas
- Radical form for distances
- Clear labeling of sides and areas
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Eureka! An interactive illustration of the Pythagorean Theorem. Drag the legs of the right triangle and watch the three squares transform in real time. Every side shows its length, every square its area — in radical form when needed, so you'll see 2√2 rather than 2.828. Slide through a visual demonstration of Euclid's original proof from Book I of the Elements. Understand why the theorem is always true, not just what it claims.
COMath Premium
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COMath Premium makes it easy to practice math, solve word problems, learn algebra step by step, and enjoy number puzzles such as Sudoku, Calcudoku, and Fillomino. Premium includes full access, no ads, and no privacy tracking. New to COMath? Try the ad-supported COMath first to experience the same core features before choosing Premium.
Screenshots
Verdict
The clearest difference is price: Pythagoras Interactive at Free against COMath Premium's $0.99. On update cadence, 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
Pythagoras Interactive is free to download; COMath Premium costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.
| Parameter | Pythagoras Interactive | COMath Premium |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | ALAN PETERSON | Jianfeng Wu |
In-app purchases
Pythagoras Interactive
No in-app purchases
COMath Premium
No in-app purchases
Questions
Is Pythagoras Interactive free?
Is COMath Premium free?
Do Pythagoras Interactive or COMath Premium have ads?
Which is updated more often, Pythagoras Interactive or COMath Premium?
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