Bio vs BrewMeter

Still wired at midnight? Bio-Rhythm is the science-based caffeine tracker built for people who refuse to trade tomorrow's sleep for today's coffee. Every coffee, tea, or energy drink you log is plotted on a real-time decay curve based on your personal metabolism. You'll see exactly how much caffeine is still in your system — and exactly when it will be safe to sleep. — PROTECT YOUR SLEEP — Get a precise countdown to your safe-sleep time. No more guessing whether that 3pm latte will haunt you at 1am. — TRACK CAFFEINE IN REAL TIME — Watch your caffeine level rise and fall on a beautiful decay chart, powered by the same exponential half-life formula used by sleep scientists. — SCORE YOUR SLEEP READINESS — Get a daily Bio-Rhythm Score from 0–100. Build streaks of "perfect nights" and see your 7-day trend at a glance. — LOG ANY DRINK IN SECONDS — 27+ preloaded beverages — espresso, americano, matcha, Red Bull, Monster, 5-Hour Energy, Coke and more. Or add your own custom drink. — HIT YOUR FOCUS ZONE (Premium) — Smart dosing recommendations tell you exactly when to drink your next coffee for peak focus — and when to stop so your sleep is protected. — BUILT FOR BIO-HACKERS — Premium unlocks custom half-life (1–12 hours) and sleep sensitivity threshold (0–100mg) so the math matches your body, not an average. — PRIVATE BY DESIGN — All your data stays on your device. No accounts, no cloud, no tracking. Stop sabotaging your sleep. Start tracking with Bio-Rhythm. — PREMIUM — Bio-Rhythm Premium unlocks: • Custom caffeine half-life • Custom sleep threshold • Focus Flow dosing recommendations • Ad-free experience Bio-Rhythm is free to download and use. To unlock the full "Bio-Hacker Engine," we offer three auto-renewing subscription options: Weekly Espresso: $1.99 per week Monthly Steady: $5.99 per month Yearly Bio-Hacker: $29.99 per year (Best Value) Privacy : https://cofeetracker.xn--hn-vrab.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Log your drinks and understand caffeine estimates with clearly separated quantities and units. Add your usual drinks, review consumption and explore an estimate of remaining caffeine. Simulate a drink before logging it, then look back at trends. The paid option is a one-time purchase with no subscription. Free features are described in the app. Estimates depend on assumptions and vary by person. They are not a medical limit or a guarantee of sleep. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://bnjdpn.github.io/BrewMeter/privacy.html