# 10000 Hours Tracker vs Mastery Timer

The clearest difference is in-app purchases: 10000 Hours Tracker at none against Mastery Timer's 1. Mastery Timer's advantage is iOS requirement (16.4 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Mastery Timer sells 1 one-off in-app purchase. 10000 Hours Tracker asks for nothing beyond the download.

## The numbers

| Metric | 10000 Hours Tracker | Mastery Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Size | 2 MB | 55 MB |
| Requires iOS | 18.5 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Nathaniel Garrett Davis](https://appshunter.io/developer/1803271714) | [Arjun Gupte](https://appshunter.io/developer/1894098625) |

## What reviewers say

### 10000 Hours Tracker

[App page](https://appshunter.io/ios/app/10000-hours-tracker/id6761412023)

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

**In-app purchases:** none


### Mastery Timer

[App page](https://appshunter.io/ios/app/mastery-timer/id6782785941)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Friends | $1.99 | one-time |


## Frequently asked questions

### Is 10000 Hours Tracker free?

10000 Hours Tracker is free to download, with no in-app purchases.

### Is Mastery Timer free?

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

### Do 10000 Hours Tracker or Mastery Timer have ads?

Neither 10000 Hours Tracker nor Mastery Timer 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.*