# Pythagoras Calculator vs Pythagoras Interactive

The clearest difference is in-app purchases: Pythagoras Interactive at none against Pythagoras Calculator's 8. Pythagoras Interactive also leads on rating (5.0 vs 4.6). Pythagoras Calculator's advantage is ratings volume (242 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pythagoras Calculator sells 8 one-off in-app purchases. Pythagoras Interactive asks for nothing beyond the download.

Pythagoras Interactive holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 242 ratings behind it against 1, so its average is the more settled of the two.

Pythagoras Calculator ships an update every 3 weeks, Pythagoras Interactive every 2 weeks. The most recent releases landed on October 13, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Pythagoras Calculator | Pythagoras Interactive |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (242 ratings)](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389/reviews)** |
| Number of ratings | **242** | 1 |
| Positive reviews | 83.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 179 MB | 1 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [ALAN PETERSON](https://appshunter.io/developer/1436516782) |

## What reviewers say

### Pythagoras Calculator

[App page](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222)

Easily calculate any side 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 offers an ad-free option.

**Highlights:** Pythagorean theorem calculations, Calculate any of the three sides, History of calculations, Supports fraction input, Shareable solutions, Ad-free option

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use and simple interface
- ✅ Accurate calculations for Pythagorean theorem
- 📚 Shows step-by-step solutions for learning
- 🚀 Fast and efficient computation
- 💼 Useful for construction and woodworking projects

**What reviewers complain about**

- 📢 Intrusive and annoying advertisements
- 💳 Deceptive payment practices and fraudulent charges
- 🔐 Suspicious credit card requirements for access
- ⚠️ Forced rating prompts
- ❌ Limited functionality (only works with 2 known sides)

**Reported bugs**

- App crashes or fails to calculate
- Paid ad removal not working properly
- Fraudulent payment processing through third-party sites
- Occasional incorrect calculation results
- App not functioning on iPhone 5SE and older devices

**Requested features**

- Calculate triangle angles
- Support angle-based calculations with one side
- Better monetization without aggressive ads
- Improved ratings system
- Real-time results display


### Pythagoras Interactive

[App page](https://appshunter.io/ios/app/pythagoras-interactive/id6466731389)

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.

**Highlights:** 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

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

**In-app purchases:** none


## Frequently asked questions

### Is Pythagoras Calculator free?

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

### Is Pythagoras Interactive free?

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

### Which has better reviews, Pythagoras Calculator or Pythagoras Interactive?

Pythagoras Interactive is rated higher. Pythagoras Calculator averages 4.6 out of 5 from 242 ratings, while Pythagoras Interactive averages 5.0 from 1 ratings.

### Do Pythagoras Calculator or Pythagoras Interactive have ads?

Neither Pythagoras Calculator nor Pythagoras Interactive shows ads.

### Which is updated more often, Pythagoras Calculator or Pythagoras Interactive?

Pythagoras Calculator ships an update every 3 weeks, and Pythagoras Interactive every 2 weeks. Most recently, Pythagoras Calculator was updated on October 13, 2026 and Pythagoras Interactive on September 30, 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.*