# Unbuzz vs Sleep Timer

The clearest difference is in-app purchases: Sleep Timer at none against Unbuzz's 3. Unbuzz's advantage is update cadence (fortnightly vs every 2 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Unbuzz sells 3 in-app purchases, starting at $2.99 per month. Sleep Timer asks for nothing beyond the download.

Unbuzz ships an update fortnightly, Sleep Timer every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Unbuzz | Sleep Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Size | 141 MB | 37 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Health3 AG](https://appshunter.io/developer/1766307815) | [Xeniya Bykhova](https://appshunter.io/developer/1787778807) |

## What reviewers say

### Unbuzz

[App page](https://appshunter.io/ios/app/unbuzz-caffeine-tracker/id6757951639)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unbuzz Pro | $2.99 | per month |
| Unbuzz Pro (Annual) | $19.99 | per year |
| Unbuzz Pro (Lifetime) | $49.99 | one-time |


### Sleep Timer

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

**In-app purchases:** none


## Frequently asked questions

### Is Unbuzz free?

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

### Is Sleep Timer free?

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

### Do Unbuzz or Sleep Timer have ads?

Neither Unbuzz nor Sleep Timer shows ads.

### Which is updated more often, Unbuzz or Sleep Timer?

Unbuzz ships an update fortnightly, and Sleep Timer every 2 months. Most recently, Unbuzz was updated on September 23, 2026 and Sleep Timer on September 20, 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.*