# iMath vs Right Triangle

The clearest difference is rating: Right Triangle at 3.8 against iMath's 2.9. Right Triangle also leads on update cadence (every 3 weeks vs every 6 months). iMath's advantage is in-app purchases (none vs 8) and iOS requirement (8.0 vs 15.0). On price, ratings volume, ads and device support there is nothing between them.

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

Right Triangle holds the better App Store score, 3.8 against 2.9. Both are backed by a comparable volume of ratings — 7 and 6 respectively.

iMath ships an update every 6 months, Right Triangle every 3 weeks. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | iMath | Right Triangle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.9 (7 ratings)](https://appshunter.io/ios/app/imath/id301521528/reviews) | **[3.8 (6 ratings)](https://appshunter.io/ios/app/right-triangle-calculator/id1567415770/reviews)** |
| Number of ratings | **7** | 6 |
| Positive reviews | 57.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 180 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


### Right Triangle

[App page](https://appshunter.io/ios/app/right-triangle-calculator/id1567415770)

Instantly solve geometry homework and prepare for exams with this free calculator. It provides complete step-by-step solutions for all triangle quantities, including legs, hypotenuse, height, angles, perimeter, and area. Access learning videos and manage your solutions.

**Highlights:** Step-by-step solutions, Calculates legs, hypotenuse, height, angles, perimeter, area, Supports all length units, Curated learning videos, Feedback on incorrect inputs, Manage saved solutions

**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 | $2.99 | one-time |
| Lifetime Access | $2.99 | one-time |


## Frequently asked questions

### Is iMath free?

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

### Is Right Triangle free?

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

### Which has better reviews, iMath or Right Triangle?

Right Triangle is rated higher. iMath averages 2.9 out of 5 from 7 ratings, while Right Triangle averages 3.8 from 6 ratings.

### Do iMath or Right Triangle have ads?

Neither iMath nor Right Triangle shows ads.

### Which is updated more often, iMath or Right Triangle?

iMath ships an update every 6 months, and Right Triangle every 3 weeks. Most recently, iMath was updated on October 15, 2026 and Right Triangle 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.*