# Math Angle vs Trigonometry calc

The clearest difference is review sentiment: Math Angle at 100% against Trigonometry calc's 0%. Math Angle also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. Trigonometry calc sells 1 one-off in-app purchase. Math Angle asks for nothing beyond the download.

Math Angle ships an update every 6 weeks, Trigonometry calc every 3 months. The most recent releases landed on July 19, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Math Angle | Trigonometry calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 10 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Heiko Etzold](https://appshunter.io/developer/715739131) | [Bo Kalvslund](https://appshunter.io/developer/572272193) |

## What reviewers say

### Math Angle

[App page](https://appshunter.io/ios/app/math-angle/id715739128)

Learn about angles in mathematics. Explore different angle types, practice estimation, and identify special angles. This app offers interactive tools for visual learning.

**Highlights:** Angle type selection, Angle estimation, Special angle identification, Angle drawing, Interactive learning tools

**In-app purchases:** none


### Trigonometry calc

[App page](https://appshunter.io/ios/app/trigonometry-calc/id1306864057)

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

**Highlights:** Calculate side lengths, Calculate angles, Pythagorean Theorem, Trigonometry functions, Learn simple trigonometry, General triangle calculator (premium)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


## Frequently asked questions

### Is Math Angle free?

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

### Is Trigonometry calc free?

Trigonometry calc is free to download, with in-app purchases available.

### Do Math Angle or Trigonometry calc have ads?

Trigonometry calc shows ads; Math Angle does not.

### Which is updated more often, Math Angle or Trigonometry calc?

Math Angle ships an update every 6 weeks, and Trigonometry calc every 3 months. Most recently, Math Angle was updated on July 19, 2026 and Trigonometry calc on September 6, 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.*