# Right Angle vs Triangle Angles Calculator

The clearest difference is rating: Triangle Angles Calculator at 5.0 against Right Angle's 3.9. Triangle Angles Calculator also leads on in-app purchases (none vs 9) and review sentiment (100% vs 73%). Right Angle's advantage is ratings volume (30 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Right Angle sells 9 in-app purchases, starting at $2.99 per month. Triangle Angles Calculator asks for nothing beyond the download.

Triangle Angles Calculator holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Right Angle has 30 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 73% of Right Angle's written reviews are positive against 100% of Triangle Angles Calculator's.

Right Angle ships an update every 5 days, Triangle Angles Calculator every 3 days. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Right Angle | Triangle Angles Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (30 ratings)](https://appshunter.io/ios/app/right-angle/id292390648/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/triangle-angles-calculator/id1598378708/reviews)** |
| Number of ratings | **30** | 1 |
| Positive reviews | 73.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 2 MB | 28 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jerry Mayers](https://appshunter.io/developer/287638654) | [Dmitriy Trofimov](https://appshunter.io/developer/1598378710) |

## What reviewers say

### Right Angle

[App page](https://appshunter.io/ios/app/right-angle/id292390648)

This app calculates triangles and segments of circles. It supports various angle input formats and offers solutions for oblique triangles and circle segments with optional add-ons. A right triangle calculator is included for free.

**Highlights:** Triangle solver, Circle segment calculator, Multiple angle units (degrees, radians, DMS, grade, x/12), Oblique triangle solver (add-on), Circle segment solver (add-on), Free right triangle calculator

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Renews Monthly | $2.99 | per month |
| Renews Yearly | $14.99 | per year |
| Small Tip | $2.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Segments Calculator | $5.99 | one-time |
| Oblique Triangle Calculator | $5.99 | one-time |
| Segment & Oblique Triangle | $6.99 | one-time |
| Large Tip | $9.99 | one-time |
| Huge Tip | $29.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Saves time
- 🛠️ Useful for construction/trades
- 📐 Accurate calculations
- 💡 Unique functionality (historically)

**What reviewers complain about**

- 🐛 Recent updates removed key features
- 🐛 In-app purchases required for previously free features
- 🐛 Loss of purchase after update
- 🐛 App now requires payment for features
- 🐛 Misleading free app description

**Reported bugs**

- App crashes after startup
- Update caused app to crash
- Loss of previously purchased unlocked app
- Keyboard covers input fields
- App changes mm to unspecified units

**Requested features**

- Restore fraction support
- Restore feet and inches support
- Provide both angles of a right triangle
- Allow scrolling or hiding the keyboard
- Bundling with other tools


### Triangle Angles Calculator

[App page](https://appshunter.io/ios/app/triangle-angles-calculator/id1598378708)

Easily calculate unknown sides, angles, and other parameters for various triangle types. Features interactive visualizations and works offline, making it ideal for students and professionals needing quick, accurate geometric solutions.

**Highlights:** Calculate unknown triangle parameters from 2-3 known values, Interactive visualization of triangle types, Real-time calculations with intuitive interface, Offline functionality, Supports metric and imperial units, Calculates sides, angles, area, perimeter, medians, and circles

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

**In-app purchases:** none


## Frequently asked questions

### Is Right Angle free?

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

### Is Triangle Angles Calculator free?

Triangle Angles Calculator is free to download, with no in-app purchases.

### Which has better reviews, Right Angle or Triangle Angles Calculator?

Triangle Angles Calculator is rated higher. Right Angle averages 3.9 out of 5 from 30 ratings, while Triangle Angles Calculator averages 5.0 from 1 ratings.

### Do Right Angle or Triangle Angles Calculator have ads?

Neither Right Angle nor Triangle Angles Calculator shows ads.

### Which is updated more often, Right Angle or Triangle Angles Calculator?

Right Angle ships an update every 5 days, and Triangle Angles Calculator every 3 days. Most recently, Right Angle was updated on October 2, 2026 and Triangle Angles Calculator on September 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.*