Caffeine Tracker is the simplest way to know how much caffeine is in your body—and the latest time you can have coffee without ruining your sleep. The average adult has about 200 mg of caffeine a day. With a 5-hour half-life, that 3 PM cup can still be in your system at midnight. Most people track what they drink, not when—and pay for it with worse sleep, more jitters, and the next afternoon crash. Caffeine Tracker fixes that. - See live body caffeine and a decay curve out to bedtime - Get a "last safe coffee" cutoff tuned to your sleep target - Set a daily limit anchored to FDA guidelines, your age, and sensitivity - Log from a curated library of coffee, tea, energy drinks, soda, and more - Log drinks from a photo, barcode, or your voice with AI, then review every result before saving - Edit any log's time—the body math updates instantly - Keep a streak, earn XP, and unlock 44 achievements for staying under your limit - Take on daily, weekly, and monthly challenges that reward moderation and earlier cutoffs - Everything runs on your device—no accounts, no data collection, no ads. A minute to set up, and you'll finally know exactly when to put the cup down. Questions or ideas? Hit the contact link in Settings and I'll get back to you fast. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://makerbox.notion.site/Caffeine-Tracker-Privacy-Policy-36dd30b69c448097b77be78b41cd7177