Duskly
Track Caffeine. Sleep Better.
Only for iPhone
Free · In‑App Purchases
iPhone
How much caffeine is REALLY still in your body right now? Duskly tracks your intake with real half-life calculations and tells you exactly when you'll be sleep-ready.
HOW MUCH CAFFEINE IS STILL IN YOUR BODY?
You had coffee at 2pm.
It's 8pm now.
Half of it is still in your system.
That's why you can't sleep.
Most people consume 300mg+ of caffeine per day without realizing it. Coffee, tea, cola, chocolate, even decaf... it all adds up.
Duskly shows you the truth.
SMART CAFFEINE TRACKING
No generic rules. Duskly calculates your real caffeine half-life and tells you exactly when you'll be sleep-ready. Track coffee, tea, energy drinks, soda, chocolate, everything.
SLEEP READINESS SCORE
One number. Five factors. Checked before bed, not after. Other apps tell you tomorrow that you slept badly. Duskly tells you tonight what to change.
YOUR CAFFEINE CUTOFF
Duskly warns you when it's too late for caffeine and suggests lower-caffeine alternatives.
2-MINUTE EVENING ROUTINE
Build small, effective habits with checklists, streaks, and timely reminders. 2 minutes. Every night.
DAILY SLEEP QUIZ
60 seconds a day. Understand how caffeine, light, stress, and habits actually affect your sleep.
BADGES & STREAKS
Track your progress. Unlock achievements. Stay motivated without pressure.
FREE
· Track caffeine & see real-time levels
· Sleep-ready time prediction
· Sleep Readiness Score
· Evening routine with streaks
· Daily quiz
· Sleep hygiene guide (28 tips)
PREMIUM — SLEEP LIKE A PRO
· Caffeine forecasts & trends over weeks
· Score trends: What's actually improving your sleep?
· Streak Freeze: Never lose your streak
· Create custom routine items
· Unlock all 28 badges
· Smart reminders at the right time
Sleep doesn't start in bed. It starts before.
Cancel anytime.
*Try free for 7 days.
*Free trial applies to annual subscriptions only.
Privacy Policy: https://duskly.app/en/privacy/
Terms of Service: https://duskly.app/en/terms/
Ratings & Reviews
This app hasn’t received enough ratings or reviews to display an overview.
- Improved streak detection after app restart
- Various bug fixes & performance improvements
The developer, Mike Stettler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Purchases
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Mike Stettler
- Size
- 3.1 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later.
- Languages
- English and German
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Monthly $5.99
- Annual $34.99
- Copyright
- © 2026 Mike Stettler