# Solving Pythagoras PRO vs StudX

The clearest difference is price: StudX at Free against Solving Pythagoras PRO's $1.99. StudX also leads on update cadence (every 8 days vs every 5 weeks) and review sentiment (83% vs 71%). Solving Pythagoras PRO's advantage is in-app purchases (none vs 4). On rating, ratings volume, ads and device support there is nothing between them.

StudX is free to download; Solving Pythagoras PRO costs $1.99 up front. StudX sells 4 in-app purchases, starting at $6.99 per 7 days. Solving Pythagoras PRO asks for nothing beyond the download.

StudX holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 35 and 17 respectively. Written reviews point the same way: 71% of Solving Pythagoras PRO's written reviews are positive against 83% of StudX's.

Solving Pythagoras PRO ships an update every 5 weeks, StudX every 8 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Solving Pythagoras PRO | StudX |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [4.2 (35 ratings)](https://appshunter.io/ios/app/solving-pythagoras-pro/id1273601215/reviews) | **[4.4 (17 ratings)](https://appshunter.io/ios/app/studxflashcard-and-homework-ai/id6744673172/reviews)** |
| Number of ratings | **35** | 17 |
| Positive reviews | 71.4% of reviews | **83.3% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 179 MB | 42 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Chestnuts Intelligence UG (haftungsbeschrankt)](https://appshunter.io/developer/1785888203) |

## What reviewers say

### Solving Pythagoras PRO

[App page](https://appshunter.io/ios/app/solving-pythagoras-pro/id1273601215)

Easily calculate the sides of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and provides clear solution steps.

**Highlights:** Pythagorean theorem calculations, Calculate any of the three sides, Fraction input support, Calculation history, Clear solution steps, Manual history sorting and deletion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### StudX

[App page](https://appshunter.io/ios/app/studxflashcard-and-homework-ai/id6744673172)

This AI-powered study tool offers instant, step-by-step solutions to homework problems by simply snapping a photo or typing. It transforms answers into flashcards and adaptive quizzes, with all your study history automatically saved and shareable.

**Highlights:** AI-powered homework solutions, Snap or type problems, Step-by-step reasoning, AI-generated flashcards, Adaptive quizzes, Searchable study history, Cross-device sync

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | per 7 days |
| unlimited access | $34.99 | per month |
| Premium Yearly Plan | $44.99 | per year |
| unlimited access | $49.99 | per 6 months |


## Frequently asked questions

### Is Solving Pythagoras PRO free?

Solving Pythagoras PRO costs $1.99, with no in-app purchases.

### Is StudX free?

StudX is free to download, with in-app purchases available.

### Which has better reviews, Solving Pythagoras PRO or StudX?

StudX is rated higher. Solving Pythagoras PRO averages 4.2 out of 5 from 35 ratings, while StudX averages 4.4 from 17 ratings.

### Do Solving Pythagoras PRO or StudX have ads?

Neither Solving Pythagoras PRO nor StudX shows ads.

### Which is updated more often, Solving Pythagoras PRO or StudX?

Solving Pythagoras PRO ships an update every 5 weeks, and StudX every 8 days. Most recently, Solving Pythagoras PRO was updated on October 21, 2026 and StudX on October 24, 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.*