# TriangleS vs Triangle Calc A

The clearest difference is update cadence: TriangleS at every 4 months against Triangle Calc A's every 56 months. TriangleS also leads on iOS requirement (13.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

TriangleS costs $0.99 and Triangle Calc A $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TriangleS ships an update every 4 months, Triangle Calc A every 56 months. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | TriangleS | Triangle Calc A |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 56 months |
| Size | 2 MB | 0 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ryo sasaki](https://appshunter.io/developer/318552526) | [kohei yamane](https://appshunter.io/developer/1239055575) |

## What reviewers say

### TriangleS

[App page](https://appshunter.io/ios/app/triangles/id1572386611)

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

**In-app purchases:** none


### Triangle Calc A

[App page](https://appshunter.io/ios/app/triangle-calc-a/id1582200016)

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

**In-app purchases:** none


## Frequently asked questions

### Is TriangleS free?

TriangleS costs $0.99, with no in-app purchases.

### Is Triangle Calc A free?

Triangle Calc A costs $0.99, with no in-app purchases.

### Do TriangleS or Triangle Calc A have ads?

Neither TriangleS nor Triangle Calc A shows ads.

### Which is updated more often, TriangleS or Triangle Calc A?

TriangleS ships an update every 4 months, and Triangle Calc A every 56 months. Most recently, TriangleS was updated on September 8, 2026 and Triangle Calc A on September 10, 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.*