# HalfCaff vs Caffeine Clock

The clearest difference is update cadence: Caffeine Clock at every 2 days against HalfCaff's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HalfCaff sells 3 in-app purchases, starting at $1.99 per 7 days and Caffeine Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

HalfCaff ships an update every 6 days, Caffeine Clock every 2 days. The most recent releases landed on July 4, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | HalfCaff | Caffeine Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 2 days** |
| Size | 4 MB | 6 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Yutaro Koide](https://appshunter.io/developer/1880033436) | [kazunari aoki](https://appshunter.io/developer/6774180811) |

## What reviewers say

### HalfCaff

[App page](https://appshunter.io/ios/app/halfcaff/id6760937590)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.99 | per 7 days |
| Monthly | $5.99 | per month |
| Yearly | $22.99 | per year |


### Caffeine Clock

[App page](https://appshunter.io/ios/app/caffeine-clock-bedtime/id6796871272)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caffeine Clock Pro | $9.99 | one-time |


## Frequently asked questions

### Is HalfCaff free?

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

### Is Caffeine Clock free?

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

### Do HalfCaff or Caffeine Clock have ads?

Neither HalfCaff nor Caffeine Clock shows ads.

### Which is updated more often, HalfCaff or Caffeine Clock?

HalfCaff ships an update every 6 days, and Caffeine Clock every 2 days. Most recently, HalfCaff was updated on July 4, 2026 and Caffeine Clock on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*