Caffeine Clock is the household name in caffeine clock, but it's far from the only option. We track 204+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
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.
Track your daily caffeine intake with this app, which offers data for many beverages and a calculator for homemade drinks. It personalizes your daily limit based on sensitivity, helping you boost productivity and improve sleep. It also analyzes heart rate and sleep data to reveal caffeine's health impact.
What We Love
🚀 Wonderful, helpful app
👍 Easy to use app
👍 Great app for tracking caffeine
👍 Unique outstanding design
👍 Comprehensive set of features
👍 Beautiful and intuitive UI
👍 Useful insights and data visualization
👍 Great for managing caffeine intake
👍 Syncs with Apple Health
👍 Convenient Apple Watch integration
Room to Improve
🐛 Widgets not working properly
🐛 Watch app not syncing
🐛 Limited beverage options in free version
🐛 Outdated caffeine data
🐛 Confusing to add custom drinks
🐛 Cannot track jitters or other caffeine sources
🐛 Inability to set bean weight for homemade coffee
Caffeine Clock: Track Caffeine tops our caffeine clock apps ranking as of July 2026, with a 4.7-star average from 24 App Store ratings, and it's free to download.
Are there free caffeine clock apps for iPhone?
Yes — 20 of the top caffeine clock apps we rank are free to download, including Caffeine Clock: Track Caffeine and Caffeine Clock.
Does Caffeine Clock: Track Caffeine have ads or in-app purchases?
Caffeine Clock: Track Caffeine has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
How many caffeine clock apps are on the App Store?
We track 204+ caffeine clock apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
How does Caffeine Clock track caffeine?
Caffeine Clock models caffeine absorption and half-life to estimate your current and projected caffeine levels. It considers when you consume drinks and how long you sip them to update the caffeine curve.
Can I use Caffeine Clock offline?
Yes, Caffeine Clock works fully offline. Your data is stored locally on your device, and no account or signup is required, ensuring your privacy.