# Triangle Simulator vs Trigonometric Calculation

The clearest difference is in-app purchases: Trigonometric Calculation at none against Triangle Simulator's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Triangle Simulator sells 1 in-app purchase, starting at $1.99 per month. Trigonometric Calculation asks for nothing beyond the download.

Triangle Simulator ships an update every 2 months, Trigonometric Calculation every 6 weeks. The most recent releases landed on September 9, 2026 and May 16, 2026 respectively.

## The numbers

| Metric | Triangle Simulator | Trigonometric Calculation |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 58 MB | 5 MB |
| Requires iOS | **14.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshiya Hondo](https://appshunter.io/developer/1571875732) | [Risako Asai](https://appshunter.io/developer/1671273580) |

## What reviewers say

### Triangle Simulator

[App page](https://appshunter.io/ios/app/triangle-simulator/id1583116107)

Calculate triangle properties like sides, angles, and area instantly. Save and review past calculations with added memos. Supports various input formats and angle units for precise results.

**Highlights:** Calculate triangle sides, angles, and area, View triangle image, Save calculation history, Add memos to calculations, Input sides in square rooted values, Adjust result digit count, Choose angle units

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads (Monthly) | $1.99 | per month |


### Trigonometric Calculation

[App page](https://appshunter.io/ios/app/trigonometric-calculation/id1636196284)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Triangle Simulator free?

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

### Is Trigonometric Calculation free?

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

### Do Triangle Simulator or Trigonometric Calculation have ads?

Both Triangle Simulator and Trigonometric Calculation show ads.

### Which is updated more often, Triangle Simulator or Trigonometric Calculation?

Triangle Simulator ships an update every 2 months, and Trigonometric Calculation every 6 weeks. Most recently, Triangle Simulator was updated on September 9, 2026 and Trigonometric Calculation on May 16, 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.*