# Pythagoras Calculator vs Simple square root calculator

Pythagoras Calculator and Simple square root calculator both sit at 4.6 stars, but that hides the real split: 83% of Pythagoras Calculator's written reviews are positive against 0% of Simple square root calculator's. Pythagoras Calculator also leads on ads (none vs shown) and update cadence (every 4 weeks vs every 11 months). Simple square root calculator's advantage is in-app purchases (none vs 8) and iOS requirement (12.0 vs 15.0). On price, rating and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.6 for Pythagoras Calculator against 4.5 for Simple square root calculator. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 248 ratings behind it against 19, so its average is the more settled of the two. Written reviews are what separate them: 83% of Pythagoras Calculator's written reviews are positive against 0% of Simple square root calculator's.

Pythagoras Calculator ships an update every 4 weeks, Simple square root calculator every 11 months. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Pythagoras Calculator | Simple square root calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (248 ratings)](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222/reviews)** | [4.5 (19 ratings)](https://appshunter.io/ios/app/simple-square-root-calculator/id6449826901/reviews) |
| Number of ratings | **248** | 19 |
| Positive reviews | **83.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 weeks** | Every 11 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 179 MB | 39 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [MINERVA K.K.](https://appshunter.io/developer/1597905460) |

## 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


### Simple square root calculator

[App page](https://appshunter.io/ios/app/simple-square-root-calculator/id6449826901)

Easily calculate square roots and powers with this intuitive tool. It handles complex calculations, including those with parentheses, providing accurate results for everyday use, learning, and research.

**Highlights:** Square root calculation, Computing powers, Calculations with parentheses, Simple and intuitive interface, High accuracy results, Everyday use calculations

**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 Simple square root calculator free?

Simple square root calculator is free to download, with no in-app purchases.

### Which has better reviews, Pythagoras Calculator or Simple square root calculator?

Pythagoras Calculator is rated higher. Pythagoras Calculator averages 4.6 out of 5 from 248 ratings, while Simple square root calculator averages 4.5 from 19 ratings.

### Do Pythagoras Calculator or Simple square root calculator have ads?

Simple square root calculator shows ads; Pythagoras Calculator does not.

### Which is updated more often, Pythagoras Calculator or Simple square root calculator?

Pythagoras Calculator ships an update every 4 weeks, and Simple square root calculator every 11 months. Most recently, Pythagoras Calculator was updated on October 24, 2026 and Simple square root calculator on October 18, 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.*