Easy to use
Finally a straightforward, easy caffeine tracker. Love the added watch app, Dynamic Island and widget as well. Highly recommend.
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Free
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About
Track your caffeine intake and understand its impact on your body. This app calculates your real-time caffeine levels and predicts when you'll be able to sleep, helping you optimize your daily consumption for better rest.
✓Real-time caffeine decay tracking
✓Personalized half-life calculation
✓Sleep safety countdown
✓Coffee shop menu integration
✓Streak tracking and gamification
✓Apple Watch app with complications
✓Home Screen and Lock Screen widgets
✓HealthKit integration
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What's New in Caffeine Rhythm
3.8
September 20, 2026
Improved subscription loading so plans recover automatically when the App Store is slow to respond.
Subscription plans
Yearly Premium
Best value — all premium features for a full year.
$9.991 Year
7 Days trialUser reviews
Developer apps
FAQ
What is Caffeine Rhythm?
Caffeine Rhythm is a personalized caffeine tracker for iPhone and Apple Watch. It helps you understand your real-time caffeine levels and when you'll be safe to sleep.
Does Caffeine Rhythm have ads?
No, Caffeine Rhythm does not contain advertisements. It is an ad-free application.
How much does Caffeine Rhythm cost?
Caffeine Rhythm offers a 7-day free trial of its premium features. After the trial, a monthly subscription costs $2.99 and a yearly subscription is $19.99.
What devices does Caffeine Rhythm support?
Caffeine Rhythm is available on iPhone, iPad, and Apple Watch, offering features like complications and Live Activities.
How often is Caffeine Rhythm updated?
The latest version of Caffeine Rhythm is 3.4, and it was last updated on June 23, 2026. Updates typically include new features and improvements.
Can I cancel my Caffeine Rhythm subscription?
Yes, you can manage and cancel your subscriptions by going to Settings > Apple ID > Subscriptions on your Apple device. Ensure cancellation at least 24 hours before the current period ends.
Does Caffeine Rhythm integrate with Apple Health?
Yes, Caffeine Rhythm integrates with HealthKit to correlate caffeine intake with sleep patterns, providing deeper insights into your wellness.
What are the benefits of using Caffeine Rhythm's premium features?
Premium features include real-time caffeine decay tracking with personalized half-life, a sleep safety countdown, and smart weekly insights powered by AI.
