StackProof vs Cira

Most people take supplements and hope for the best. StackProof turns that guesswork into a real personal experiment so you finally know what's working, what's not, and what's worth keeping. HOW IT WORKS StackProof uses a simple 3-phase method used in clinical research, adapted for everyday use: 1. Baseline Phase - Log how you feel for 7 days without taking the supplement. This captures your natural normal. 2. Active Phase - Start taking your supplement daily and keep logging. 60 seconds a day. 3. Review - See a clear before vs after comparison across every metric that matters to you. No guessing. No placebo. Just your own data telling you the truth. WHAT YOU TRACK Every day you log 5 metrics on a simple 1-5 scale: - Energy - Focus - Mood - Sleep Quality - Side Effects Over time, StackProof shows you exactly how each metric shifted from your baseline to your active phase, with a confidence rating based on your consistency. SMART BASELINE After your first experiment, StackProof learns your patterns. On future experiments it can detect when you have enough recent data to skip the waiting period and start the active phase immediately. BUILT FOR REAL BIOHACKERS StackProof is designed for people who take their optimization seriously. Whether you're testing Lion's Mane for focus, Magnesium for sleep, Ashwagandha for stress, or anything else, every experiment gives you a clean structured result you can actually act on. STACKPROOF PRO Unlock the full experience: - Unlimited simultaneous experiments - Full analytics with trend charts across 7, 30, and 90 days - Smart Baseline - skip waiting periods using your recent data - Unlimited experiment history - Custom metrics beyond the default 5 - Data export to CSV - Washout period reminders Start with a free 7-day Pro trial. No charge until the trial ends. Cancel anytime. YOUR DATA Your logs are private and stored securely. StackProof never sells your data or uses it for advertising. Start your first experiment today. Your stack deserves an honest test. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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.