# Pythagoras vs Math Decoder

The clearest difference is price: Pythagoras at Free against Math Decoder's $0.99. Pythagoras also leads on update cadence (every 6 months vs every 36 months) and iOS requirement (8.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

Pythagoras is free to download; Math Decoder costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pythagoras ships an update every 6 months, Math Decoder every 36 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Pythagoras | Math Decoder |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/pythagoras/id404430950/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 35.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 36 months |
| Monetization | Free | — |
| Size | 8 MB | 28 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Roman Koksharov](https://appshunter.io/developer/700716922) | [Ventura Educational Systems](https://appshunter.io/developer/371324172) |

## What reviewers say

### Pythagoras

[App page](https://appshunter.io/ios/app/pythagoras/id404430950)

Explore the Pythagorean Theorem through engaging puzzles without complex formulas. This educational app offers a beautiful and fascinating way to understand geometric principles.

**Highlights:** Visual proof of Pythagorean Theorem, Formula-free learning, Educational puzzle gameplay, Beautiful design, Engaging and fascinating

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Decoder

[App page](https://appshunter.io/ios/app/math-decoder/id1387526040)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pythagoras free?

Pythagoras is free to download, with no in-app purchases.

### Is Math Decoder free?

Math Decoder costs $0.99, with no in-app purchases.

### Do Pythagoras or Math Decoder have ads?

Neither Pythagoras nor Math Decoder shows ads.

### Which is updated more often, Pythagoras or Math Decoder?

Pythagoras ships an update every 6 months, and Math Decoder every 36 months. Most recently, Pythagoras was updated on September 25, 2026 and Math Decoder on September 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*