# iMath vs Pythagoras Calculator

The clearest difference is rating: Pythagoras Calculator at 4.6 against iMath's 2.9. Pythagoras Calculator also leads on update cadence (every 4 weeks vs every 6 months) and review sentiment (83% vs 57%). iMath's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 15.0). On price, ads and device support there is nothing between them.

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

Pythagoras Calculator holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 248 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 57% of iMath's written reviews are positive against 83% of Pythagoras Calculator's.

iMath ships an update every 6 months, Pythagoras Calculator every 4 weeks. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | iMath | Pythagoras Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (7 ratings)](https://appshunter.io/ios/app/imath/id301521528/reviews) | **[4.6 (248 ratings)](https://appshunter.io/ios/app/pythagoras-calculator/id1270384222/reviews)** |
| Number of ratings | 7 | **248** |
| Positive reviews | 57.1% of reviews | **83.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 179 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Rafael Cimatti](https://appshunter.io/developer/1504134395) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### iMath

[App page](https://appshunter.io/ios/app/imath/id301521528)

This app assists with various math calculations, including quadratic equations, the Pythagorean theorem, and logarithms. It displays the formulas used to aid learning and features an easy-to-use interface for checking homework or teaching others.

**Highlights:** Calculates quadratic equations, Calculates Pythagoras theorem, Calculates logarithm equations, Displays formulas for learning, Easy-to-use interface, Custom problem submission

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is iMath free?

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

### Is Pythagoras Calculator free?

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

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

Pythagoras Calculator is rated higher. iMath averages 2.9 out of 5 from 7 ratings, while Pythagoras Calculator averages 4.6 from 248 ratings.

### Do iMath or Pythagoras Calculator have ads?

Neither iMath nor Pythagoras Calculator shows ads.

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

iMath ships an update every 6 months, and Pythagoras Calculator every 4 weeks. Most recently, iMath was updated on October 23, 2026 and Pythagoras Calculator on October 26, 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.*