# XRT vs Caffeine Tracker

The clearest difference is in-app purchases: XRT at none against Caffeine Tracker's 2. XRT also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Caffeine Tracker sells 2 in-app purchases, starting at $2.99 per month. XRT asks for nothing beyond the download.

## The numbers

| Metric | XRT | Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 186 MB | 15 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [XR Therapeutics Ltd.](https://appshunter.io/developer/1755747848) | [Gruffydd Johnston](https://appshunter.io/developer/1651486785) |

## What reviewers say

### XRT

[App page](https://appshunter.io/ios/app/xrt/id6514318199)

**Features:** macOS Compatibility

**In-app purchases:** none


### Caffeine Tracker

[App page](https://appshunter.io/ios/app/caffeine-tracker-siplog/id6746972423)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $9.99 | per year |


## Frequently asked questions

### Is XRT free?

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

### Is Caffeine Tracker free?

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

### Do XRT or Caffeine Tracker have ads?

Neither XRT nor Caffeine Tracker 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.*