# Caffeine App vs Caffeine Clock

The clearest difference is monetization model: Caffeine Clock at free against Caffeine App's free with in-app purchases. Caffeine Clock also leads on update cadence (weekly vs monthly) and iOS requirement (16.4 vs 18.0). Caffeine App's advantage is ratings volume (341 vs 28) and device support (3 vs 1). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Caffeine App sells 1 one-off in-app purchase and Caffeine Clock sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Caffeine App against 4.7 for Caffeine Clock. That said, the two scores are not equally well evidenced: Caffeine App has 341 ratings behind it against 28, so its average is the more settled of the two. Written reviews are what separate them: 74% of Caffeine App's written reviews are positive against 80% of Caffeine Clock's.

Caffeine App ships an update monthly, Caffeine Clock weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Caffeine App | Caffeine Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (341 ratings)](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983/reviews) | **[4.7 (28 ratings)](https://appshunter.io/ios/app/caffeine-clock-track-caffeine/id6504160396/reviews)** |
| Number of ratings | **341** | 28 |
| Positive reviews | 73.7% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 121 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | **iPhone, Apple Watch, Vision Pro** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oleg Mueller](https://appshunter.io/developer/367875607) | [ANTONIN WINGENDER](https://appshunter.io/developer/1751178342) |

## What reviewers say

### Caffeine App

[App page](https://appshunter.io/ios/app/caffeine-app-daily-tracker/id1045959983)

Track your caffeine intake from various beverages and monitor your hydration levels. Visualize your caffeine curve over 24 hours and receive notifications for your optimal sleep time. Integrates with Apple Health and Apple Watch for seamless logging and data syncing.

**Highlights:** Log caffeine from coffee, tea, and energy drinks, Visualize 24-hour caffeine curve, Calculate optimal sleep time, Track daily water intake, Apple Watch logging and complications, Apple Health integration, iCloud sync

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- 🎯 Accurate caffeine tracking and decay calculations
- ⏰ Helpful sleep readiness predictions
- 🏥 Apple Health integration for long-term tracking
- ⌚ Apple Watch support with quick logging

**What reviewers complain about**

- ⚠️ Recent performance degradation from new features
- 📊 Graphs become too small with multiple charts enabled
- ⏳ Long graphics update delays affecting responsiveness
- 🐛 Sleep ready time shows current time instead of prediction
- 🌍 Limited beverage library for non-German markets

**Reported bugs**

- Sleep ready time displays current time instead of predicted sleep time
- Cannot rename custom amounts until after adding them
- Newly added custom amounts appear at bottom of list
- Health app data from third-party apps not syncing
- All presets missing in some versions

**Requested features**

- Toggle option to disable bar chart visualization
- Taller graph display area with scrolling capability
- Personalization based on body weight and metabolism
- Ounce-based measurement options for drinks
- Multi-day and historical trend analysis


### 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 |


## Frequently asked questions

### Is Caffeine App free?

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

### Is Caffeine Clock free?

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

### Which has better reviews, Caffeine App or Caffeine Clock?

Caffeine Clock is rated higher. Caffeine App averages 4.6 out of 5 from 341 ratings, while Caffeine Clock averages 4.7 from 28 ratings.

### Do Caffeine App or Caffeine Clock have ads?

Neither Caffeine App nor Caffeine Clock shows ads.

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

Caffeine App ships an update monthly, and Caffeine Clock weekly. Most recently, Caffeine App was updated on October 24, 2026 and Caffeine Clock on October 24, 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.*