Pythagoras Interactive vs MARVLS
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.
MARVLS
Explore quantum computing concepts through interactive augmented reality models. Requires a Merge Cube to visualize and manipulate topics like superposition and entanglement. Navigate through various educational modules to deepen your understanding.
- Augmented reality visualization
- Interactive quantum concepts
- Merge Cube integration
- Topics: superposition, entanglement, qubits
- Logic gates visualization
- Nuclear and electron spin models
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View augmented reality models of quantum computing concepts through your phone. You'll need a Merge Cube (link included to download). Click on different button to navigate to different topics. Tap the camera icon and point your camera towards the Merge Cube to visualize and interact with our MARVLS. Topics include observer dependency, superposition, entanglement, bits, qubits, nuclear and electron spin, logic gates, and trapped ions. Developer support provided by Leo Vanderlofske.
Screenshots
Verdict
The clearest difference is rating: Pythagoras Interactive at 5.0 against MARVLS's 1.0. Pythagoras Interactive also leads on update cadence (every 2 weeks vs every 4 weeks) and iOS requirement (16.0 vs 18.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Pythagoras Interactive holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
Pythagoras Interactive ships an update every 2 weeks, MARVLS every 4 weeks. The most recent releases landed on August 20, 2026 and September 9, 2026 respectively.
| Parameter | Pythagoras Interactive | MARVLS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 weeks — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 1 MB | 168 MB |
| Age rating | 4+ | 4+ |
| Developer | ALAN PETERSON | Michele McColgan |
Customer experience
Pythagoras Interactive
MARVLS
In-app purchases
Pythagoras Interactive
No in-app purchases
MARVLS
No in-app purchases
Questions
Is Pythagoras Interactive free?
Is MARVLS free?
Which has better reviews, Pythagoras Interactive or MARVLS?
Do Pythagoras Interactive or MARVLS have ads?
Which is updated more often, Pythagoras Interactive or MARVLS?
Other comparisons
