# Caffeine Clock vs Frank's Caffeine Tracker

The clearest difference is in-app purchases: Frank's Caffeine Tracker at none against Caffeine Clock's 2. Caffeine Clock's advantage is update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Caffeine Clock sells 2 one-off in-app purchases. Frank's Caffeine Tracker asks for nothing beyond the download.

Caffeine Clock ships an update weekly, Frank's Caffeine Tracker fortnightly. The most recent releases landed on September 16, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Caffeine Clock | Frank's Caffeine Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (24 ratings)](https://appshunter.io/ios/app/caffeine-clock-track-caffeine/id6504160396/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free | — |
| Size | 122 MB | 37 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ANTONIN WINGENDER](https://appshunter.io/developer/1751178342) | [Frank Gerritse](https://appshunter.io/developer/1805358593) |

## What reviewers say

### Caffeine Clock

[App page](https://appshunter.io/ios/app/caffeine-clock-track-caffeine/id6504160396)

This app helps you track your caffeine intake and understand its impact on your sleep. It models caffeine absorption and half-life to provide a clear view of your current and projected levels, allowing you to plan your consumption for better rest.

**Highlights:** Caffeine absorption and half-life modeling, Real-time caffeine level tracking, Interactive home screen widgets, Sleep-aware insights and bedtime planning, Extensive drink database with custom options, Daily caffeine threshold alerts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $4.99 | one-time |
| Remove Ads | $9.99 | one-time |


### Frank's Caffeine Tracker

[App page](https://appshunter.io/ios/app/franks-caffeine-tracker/id6746192998)

**In-app purchases:** none


## Frequently asked questions

### Is Caffeine Clock free?

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

### Is Frank's Caffeine Tracker free?

Frank's Caffeine Tracker is free to download, with no in-app purchases.

### Do Caffeine Clock or Frank's Caffeine Tracker have ads?

Neither Caffeine Clock nor Frank's Caffeine Tracker shows ads.

### Which is updated more often, Caffeine Clock or Frank's Caffeine Tracker?

Caffeine Clock ships an update weekly, and Frank's Caffeine Tracker fortnightly. Most recently, Caffeine Clock was updated on September 16, 2026 and Frank's Caffeine Tracker on September 17, 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.*