Caffinity vs Cira

Caffinity is the caffeine intake monitor that finally tells you when your coffee stops affecting your sleep. Track every cup. Watch your real-time mg level rise and fade. Predict your crash before it hits — and stop drinking past your bedtime. Most coffee tracker apps just count cups. Caffinity uses real caffeine half-life science — your weight, sensitivity, and last dose — to show you exactly how much caffeine is still active in your body, minute by minute. If you've ever lay in bed at 1 AM wondering whether your afternoon cold brew is keeping you up, Caffinity is the app you've been waiting for. ▸ REAL-TIME CAFFEINE INTAKE MONITOR Log any coffee, tea, espresso, latte, energy drink, or soda in two taps. Watch your active mg rise instantly and fade as your body metabolizes it. ▸ PERSONALIZED HALF-LIFE TIMELINE A live curve shows caffeine leaving your body based on your weight and sensitivity. See your energy crash before it hits. ▸ SLEEP IMPACT PREDICTION The number nobody else gives you: how much caffeine will still be active when you try to sleep tonight. Beat insomnia before it starts. ▸ SMART BEDTIME ALERTS Set a personalized daily limit and a caffeine cutoff time. Get a heads-up before you cross it — not after. ▸ STATE-BASED FEEDBACK Green when you're in the sweet spot. Yellow when you're approaching your limit. Red when it's time to stop. One glance tells you everything. ▸ WEEKLY ANALYTICS & PATTERNS Spot the days, drinks, and times that wreck your sleep. Discover habits you'd never notice on your own. ▸ HABIT STREAKS & DAILY CHALLENGES Stay under your limit. Cut off coffee by 2 PM. Build streaks. Earn XP. Healthier morning routines, one day at a time. ▸ HYDRATION COMPANION Caffeine dehydrates. Caffinity tracks water alongside coffee so you stay balanced all day. ▸ MASSIVE DRINK DATABASE Pre-loaded caffeine values for every popular coffee, tea, espresso, latte, mocha, matcha, energy drink, and soda. Two-tap logging. ▸ FIVE BEAUTIFUL THEMES Dark Coffee. Cream Latte. Neon Energy. Midnight Blue. AMOLED Black. Make Caffinity look like yours. WHO CAFFINITY IS FOR - Coffee lovers who refuse to trade sleep for caffeine - Light sleepers and the caffeine-sensitive - People managing caffeine for focus, anxiety, or energy - Wellness-minded folks building healthier morning routines

Caffeine tracker and sleep coach. Log coffee and energy drinks, see how many milligrams are still active in your body, and get the hour of your last safe cup — so tonight holds. Most trackers count the cups you drank. Cira counts what is left: caffeine climbs for about 45 minutes, then leaves at a rate set by your own metabolism, not by an average adult. Between a fast metabolism and a slow one, the difference is hours of sleep. WHAT YOU SEE FIRST • Active caffeine right now, in milligrams • The hour after which a normal cup starts costing you sleep • Whether tonight holds, and when you will be clear • The whole day as one curve: where the peak was, where it goes next TUNED TO YOU Smoking clears caffeine almost twice as fast. Contraceptives and pregnancy slow it down. After 65 it slows again. Cira applies all of it, and if you know your own half-life you can set it by hand. BEFORE YOU DRINK Check any drink at any hour before you pour it. Cira puts tonight with it and without it side by side. The log-it-anyway button never disappears: the job is to name the price, not to take the choice away. WHO IT IS FOR People who drink coffee after lunch and then lie awake. People cutting down who want to see what changes. People who take an energy drink before training — and get up early. FREE FOREVER Logging drinks, active caffeine right now, tonight's verdict, your last safe hour, the daily curve, metabolism speed and your bedtime. PREMIUM The before-you-drink check for any drink and hour, the full physiology model, the hours your caffeine is actually working, history beyond a week, your own drinks, and a reminder before your last cup. Cira gives an estimate, not a medical diagnosis. It uses a standard one-compartment pharmacokinetic model with first-order absorption. That is a good approximation, but no app can measure your blood. See a doctor about sleep problems.