# Sleep Timer vs Caffeine Mate

The clearest difference is in-app purchases: Sleep Timer at none against Caffeine Mate's 4. Caffeine Mate's advantage is update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Caffeine Mate sells 4 in-app purchases, starting at $5.99 per year. Sleep Timer asks for nothing beyond the download.

Sleep Timer ships an update every 2 months, Caffeine Mate every 6 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Sleep Timer | Caffeine Mate |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 37 MB | 21 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Xeniya Bykhova](https://appshunter.io/developer/1787778807) | [Nicholas Wong](https://appshunter.io/developer/1796992391) |

## What reviewers say

### Sleep Timer

[App page](https://appshunter.io/ios/app/sleep-timer-no-subs-apps/id6759440745)

**In-app purchases:** none


### Caffeine Mate

[App page](https://appshunter.io/ios/app/caffeine-mate-coffee-tracker/id6786909538)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caffeine Pro Annual | $5.99 | per year |
| Caffeine Pro Monthly | $5.99 | per month |
| Caffeine Pro Lifetime | $9.99 | one-time |
| Caffeine Pro Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Sleep Timer free?

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

### Is Caffeine Mate free?

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

### Do Sleep Timer or Caffeine Mate have ads?

Neither Sleep Timer nor Caffeine Mate shows ads.

### Which is updated more often, Sleep Timer or Caffeine Mate?

Sleep Timer ships an update every 2 months, and Caffeine Mate every 6 days. Most recently, Sleep Timer was updated on October 25, 2026 and Caffeine Mate on October 25, 2026.

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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.*