# CaffLog vs Caffeine Clock

The clearest difference is ads: Caffeine Clock at none against CaffLog's shown. Caffeine Clock also leads on update cadence (every 2 days vs weekly). CaffLog's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. CaffLog sells 1 in-app purchase, starting at $2.99 per month and Caffeine Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

CaffLog ships an update weekly, Caffeine Clock every 2 days. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CaffLog | Caffeine Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 2 days** |
| Size | 70 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Haruya Oyama](https://appshunter.io/developer/1803788371) | [kazunari aoki](https://appshunter.io/developer/6774180811) |

## What reviewers say

### CaffLog

[App page](https://appshunter.io/ios/app/cafflog-caffeine-tracker/id6745146196)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CaffLog Premium | $2.99 | per month |


### 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 CaffLog free?

CaffLog 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 CaffLog or Caffeine Clock have ads?

CaffLog shows ads; Caffeine Clock does not.

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

CaffLog ships an update weekly, and Caffeine Clock every 2 days. Most recently, CaffLog was updated on September 10, 2026 and Caffeine Clock on September 8, 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.*