# Trigonometry calc vs Triangle Solver

The clearest difference is rating: Triangle Solver at 5.0 against Trigonometry calc's 3.0. Triangle Solver also leads on in-app purchases (none vs 1) and update cadence (monthly vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

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

Triangle Solver holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Trigonometry calc ships an update every 3 months, Triangle Solver monthly. The most recent releases landed on September 6, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Trigonometry calc | Triangle Solver |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/trigonometry-calc/id1306864057/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/triangle-solver/id1508047860/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 10 MB | 47 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bo Kalvslund](https://appshunter.io/developer/572272193) | [Francesco Varotti](https://appshunter.io/developer/1501752853) |

## What reviewers say

### 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 |


### Triangle Solver

[App page](https://appshunter.io/ios/app/triangle-solver/id1508047860)

This app provides step-by-step solutions for triangle calculations and angle conversions. It includes practice exercises, a trigonometry formula sheet, and an integrated math keyboard for easy input. Ideal for students and professionals needing to master triangle properties.

**Highlights:** Step-by-step triangle calculations, Angle conversion, Practice trigonometry exercises, Trigonometry formula sheet, Integrated math keyboard

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

**In-app purchases:** none


## Frequently asked questions

### Is Trigonometry calc free?

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

### Is Triangle Solver free?

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

### Which has better reviews, Trigonometry calc or Triangle Solver?

Triangle Solver is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while Triangle Solver averages 5.0 from 2 ratings.

### Do Trigonometry calc or Triangle Solver have ads?

Both Trigonometry calc and Triangle Solver show ads.

### Which is updated more often, Trigonometry calc or Triangle Solver?

Trigonometry calc ships an update every 3 months, and Triangle Solver monthly. Most recently, Trigonometry calc was updated on September 6, 2026 and Triangle Solver on September 3, 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.*