# Centred vs Mast

The clearest difference is in-app purchases: Centred at none against Mast's 2. Centred also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Mast sells 2 in-app purchases, starting at $7.99 per 7 days. Centred asks for nothing beyond the download.

## The numbers

| Metric | Centred | Mast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Size | 17 MB | 81 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jaco Rossouw](https://appshunter.io/developer/1895762288) | [Thomas Bryden](https://appshunter.io/developer/6789959069) |

## What reviewers say

### Centred

[App page](https://appshunter.io/ios/app/centred-adhd-companion/id6771790973)

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

**In-app purchases:** none


### Mast

[App page](https://appshunter.io/ios/app/mast-commitment-app-blocker/id6792932756)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mast Plus - Weekly | $7.99 | per 7 days |
| Mast Plus - Yearly | $49.99 | per year |


## Frequently asked questions

### Is Centred free?

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

### Is Mast free?

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

### Do Centred or Mast have ads?

Neither Centred nor Mast shows ads.

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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.*