# Triangle Simulator vs Arch Layout Calculator

The clearest difference is price: Triangle Simulator at Free against Arch Layout Calculator's $0.99. Triangle Simulator also leads on update cadence (every 2 months vs every 38 months) and iOS requirement (15.0 vs 18.0). Arch Layout Calculator's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.

Triangle Simulator is free to download; Arch Layout Calculator costs $0.99 up front. Triangle Simulator sells 1 in-app purchase, starting at $1.99 per month. Arch Layout Calculator asks for nothing beyond the download.

Triangle Simulator ships an update every 2 months, Arch Layout Calculator every 38 months. The most recent releases landed on September 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Triangle Simulator | Arch Layout Calculator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 38 months |
| Monetization | Free with in-app purchases | — |
| Size | 65 MB | 1 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Toshiya Hondo](https://appshunter.io/developer/1571875732) | [H3 Apps, LLC](https://appshunter.io/developer/598620927) |

## 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 |


### Arch Layout Calculator

[App page](https://appshunter.io/ios/app/arch-layout-calculator/id1630831077)

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

**In-app purchases:** none


## Frequently asked questions

### Is Triangle Simulator free?

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

### Is Arch Layout Calculator free?

Arch Layout Calculator costs $0.99, with no in-app purchases.

### Do Triangle Simulator or Arch Layout Calculator have ads?

Triangle Simulator shows ads; Arch Layout Calculator does not.

### Which is updated more often, Triangle Simulator or Arch Layout Calculator?

Triangle Simulator ships an update every 2 months, and Arch Layout Calculator every 38 months. Most recently, Triangle Simulator was updated on September 25, 2026 and Arch Layout Calculator on September 12, 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.*