# Circle Calculator vs Trigonometry Toolkit by CS

The clearest difference is device support: Circle Calculator at 3 against Trigonometry Toolkit by CS's —. Circle Calculator also leads on iOS requirement (13.0 vs 26.0). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Circle Calculator | Trigonometry Toolkit by CS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | — |
| Update frequency | Every 5 weeks | — |
| Size | 72 MB | 10 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [AHMET DEMIR](https://appshunter.io/developer/1849165331) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### 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 |


### Trigonometry Toolkit by CS

[App page](https://appshunter.io/ios/app/trigonometry-toolkit-by-cs/id6760443966)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features + Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Circle Calculator free?

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

### Is Trigonometry Toolkit by CS free?

Trigonometry Toolkit by CS is free to download, with in-app purchases available.

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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.*