Blood Levels

Track medication blood levels with scientific precision — using pharmacokinetic half-life calculations that show you exactly how your medications rise and fall over time. Blood Levels works with ANY medication that has a known half-life. Unlike apps built for a single drug class, it supports GLP-1 agonists, testosterone, estradiol, insulin, thyroid medications, biologics, pain medications — anything you need to track. WHAT BLOOD LEVELS DOES • Visualizes your blood level over time with a smooth decay curve • Sums contributions from every past dose to show your current true level • Suggests when to take your next dose based on your target minimum • Works offline — all calculations run on your device FEATURES • 60+ pre-loaded medications with accurate half-life data • Custom medications — add any drug with its half-life • Smart dose logging with injection site tracking • Beautiful charts with target-range shading • Dose reminders and notifications • Weight, height, blood pressure, heart rate, and blood sugar tracking • Side effect logging with severity • CSV import/export • Full JSON backup and restore (Pro) • PDF reports for your doctor (Pro) • Apple Health two-way sync (Pro) • Privacy Mode to hide selected medications on demand (Pro) • iCloud sync (optional) • Dark mode, AMOLED black theme, light mode • Metric or Imperial units 21-DAY FREE TRIAL All features are free for 21 days. Unlock forever with a single $4.99 purchase. No subscription. No auto-renewal. No recurring fees. PRIVACY FIRST No accounts. No tracking. No ads. No analytics SDKs. Your data lives on your device and, if you choose, your private iCloud. The developer never sees it. MEDICAL DISCLAIMER Blood Levels is an informational tool, not a medical device. The calculations are estimates based on standard pharmacokinetic formulas and published half-life data. Actual levels vary with individual metabolism, drug interactions, and other factors. Always consult your healthcare provider for medical decisions. — Questions or feedback? humberto+bloodlevels@humberto.us