# Minus vs Factor Tutor by ChatStick

The clearest difference is in-app purchases: Minus at none against Factor Tutor by ChatStick's 1. Minus also leads on device support and iOS requirement (14.3 vs 26.0). On price there is nothing between them.

Both are free to download. Factor Tutor by ChatStick sells 1 one-off in-app purchase. Minus asks for nothing beyond the download.

## The numbers

| Metric | Minus | Factor Tutor by ChatStick |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 2 weeks | — |
| Size | 0 MB | 12 MB |
| Requires iOS | **14.3** | 26.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Michael Hohlfeld](https://appshunter.io/developer/1456349163) | [ChatStick Company Limited](https://appshunter.io/developer/1165816085) |

## What reviewers say

### Minus

[App page](https://appshunter.io/ios/app/minus-calculator/id1547136719)

**Features:** macOS Compatibility

**In-app purchases:** none


### Factor Tutor by ChatStick

[App page](https://appshunter.io/ios/app/factor-tutor-by-chatstick/id6760650663)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features + Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Minus free?

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

### Is Factor Tutor by ChatStick free?

Factor Tutor by ChatStick 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.*