Caffeine Tracker: Coffee Log.

Caffeine is a simple app for tracking your caffeine intake throughout the day. Add drinks in seconds, stay within your daily limit, and see how much caffeine may still be in your system by bedtime based on the app’s estimates.

WHO IT’S FOR
- You enjoy coffee, tea, or energy drinks and want to understand how much caffeine you consume
- You want to plan your last cup to help you sleep better
- You’re looking for a simple tracker with no registration or unnecessary features

TRACK YOUR CAFFEINE
- Coffee, tea, soda, chocolate, supplements, and custom drinks
- Quick Add and favorite drinks
- Edit caffeine amounts before saving
- Daily history with a calendar

ESTIMATES & CHARTS
- See how much caffeine may be active in your system right now
- Bedtime estimate based on your selected sleep time
- Caffeine decline chart throughout the day
- Recommended caffeine window — see when another serving may put you above your bedtime goal
- “What If” — check a drink before you have it

PERSONAL SETTINGS
- Daily caffeine limit
- Bedtime and your caffeine goal for sleep
- Caffeine sensitivity and half-life
- Light and dark themes, English and Russian languages

SLEEP & PATTERNS
- Quick morning sleep check-in
- Sleep quality statistics and patterns related to caffeine intake
- Personalized insights based on your entries — not medical conclusions

STATISTICS
- Average intake, trends, and caffeine sources
- Days within your daily limit and bedtime goal
- Time periods: 7 days, 30 days, 3 months, and all time

REMINDERS
- Caffeine cutoff reminder
- Morning sleep check-in reminder
- Weekly summary
- CSV export — only when you request it

IMPORTANT
- All calculations in the app are estimates based on the drinks you add and your personal settings. Caffeine does not replace professional medical advice and is not intended to diagnose or treat any condition.
- Start tracking your caffeine today — and choose a better time for your next cup.