# Triangle Solver vs Right Triangle

The clearest difference is in-app purchases: Triangle Solver at none against Right Triangle's 8. Triangle Solver also leads on rating (4.2 vs 3.8) and ratings volume (31 vs 6). Right Triangle's advantage is update cadence (every 3 weeks vs every 21 months). On price, ads and device support there is nothing between them.

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

Triangle Solver holds the better App Store score, 4.2 against 3.8. That said, the two scores are not equally well evidenced: Triangle Solver has 31 ratings behind it against 6, so its average is the more settled of the two.

Triangle Solver ships an update every 21 months, Right Triangle every 3 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Triangle Solver | Right Triangle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (31 ratings)](https://appshunter.io/ios/app/triangle-solver/id383052814/reviews)** | [3.8 (6 ratings)](https://appshunter.io/ios/app/right-triangle-calculator/id1567415770/reviews) |
| Number of ratings | **31** | 6 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 97 MB | 180 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [William Jockusch](https://appshunter.io/developer/342126227) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Triangle Solver

[App page](https://appshunter.io/ios/app/triangle-solver/id383052814)

Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.

**Highlights:** Calculate unknown sides, Calculate unknown angles, Two angles and one side input, Two sides and one angle input, Three sides input

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

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 📐 Accurate calculations
- ✨ Ad-free experience
- 📐 Dynamic triangle diagram
- 🚀 Quick results

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Stopped working on iOS
- 🐛 Input fields not clear
- 🐛 Ads can be intrusive
- 🐛 Difficult to use with irrational numbers

**Reported bugs**

- Stopped working on iPhone and iPad
- App crashes
- Won't open on older devices
- Doesn't allow value entry
- Input fields not clear

**Requested features**

- Add switch to radians feature
- Allow input of irrational numbers
- Show steps for solving problems
- Triangle shape changes to match values for accurate scale
- Option to use app sideways for larger keyboard


### 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 Triangle Solver free?

Triangle Solver 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, Triangle Solver or Right Triangle?

Triangle Solver is rated higher. Triangle Solver averages 4.2 out of 5 from 31 ratings, while Right Triangle averages 3.8 from 6 ratings.

### Do Triangle Solver or Right Triangle have ads?

Neither Triangle Solver nor Right Triangle shows ads.

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

Triangle Solver ships an update every 21 months, and Right Triangle every 3 weeks. Most recently, Triangle Solver was updated on October 3, 2026 and Right Triangle on October 2, 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.*