# Touch Trigonometry vs Circle Calculator

The clearest difference is ads: Touch Trigonometry at none against Circle Calculator's shown. Circle Calculator's advantage is iOS requirement (13.0 vs 15.1). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Touch Trigonometry sells 1 one-off in-app purchase and Circle Calculator sells 7 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Touch Trigonometry | Circle Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 weeks |
| Size | 48 MB | 72 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aisatsu LLC](https://appshunter.io/developer/1874553323) | [AHMET DEMIR](https://appshunter.io/developer/1849165331) |

## What reviewers say

### Touch Trigonometry

[App page](https://appshunter.io/ios/app/touch-trigonometry/id6758712159)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Touch Trigonometry | $4.99 | one-time |


### Circle Calculator

[App page](https://appshunter.io/ios/app/circle-calculator-geometry/id6760240001)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Circle Pro Weekly | $1.99 | per 7 days |
| Circle Pro Weekly | $3.99 | per 7 days |
| Circle Pro Monthly | $3.99 | per month |
| Circle Pro Monthly | $7.99 | per month |
| Circle Pro Annual | $24.99 | per year |
| Circle Pro Annual | $49.99 | per year |
| Circle Calculator Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Touch Trigonometry free?

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

### Is Circle Calculator free?

Circle Calculator is free to download, with in-app purchases available.

### Do Touch Trigonometry or Circle Calculator have ads?

Circle Calculator shows ads; Touch Trigonometry does not.

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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.*