PeptideOS: Peptide Calculator

PeptideOS is a peptide calculator and peptide tracker in one app. Use the reconstitution calculator to work out how many syringe units to draw, save the result as a protocol, and get dose reminders when each one is due. No spreadsheets, and no account required. 🧮 PEPTIDE RECONSTITUTION CALCULATOR • Enter the vial size, the bacteriostatic (BAC) water you added and your planned dose • See the volume to draw in syringe units on a visual syringe: 0.3 mL, 0.5 mL and 1 mL insulin syringes (U-100) • Works in mg, mcg and IU, with automatic unit conversion • Blend calculator for vials that hold more than one peptide • Shows the concentration and how many draws each vial holds 💉 PEPTIDE TRACKER & DOSE LOG • Save any calculation straight into a protocol • Log each dose in one tap, with streaks and 7-day adherence • Track the uses left in every vial, so you know when to reorder • Optional vial cost tracking in your own currency ⏰ DOSE REMINDERS & CALENDAR • Schedule by weekday, by pattern (such as 5 days on, 2 off) or every X days • Several reminder times per day, delivered at the exact time you set • Reminders are restored after the phone restarts • Calendar view of upcoming and logged doses • Optional cycle start and end dates 📍 INJECTION SITE ROTATION • Choose preferred injection sites for each vial • PeptideOS suggests the next site so you rotate evenly • Can be switched off in Settings 📈 PROGRESS DASHBOARD • Weight and body-measurement history with trend lines and goal pace • BMR and TDEE estimates, lean mass and FFMI, each with a plain-language explanation • Milestones as you stay consistent 📚 RESEARCH LIBRARY • Reference notes on common research peptides, kept next to your protocols 🎨 MADE FOR EVERYDAY USE • Seven color schemes, light and dark mode, and an optional Soft theme • Works offline. Your protocols and logs are stored on your device unless you turn on cloud backup • No account needed. Google sign-in is only used for optional cloud backup WHO IT'S FOR Anyone who wants a peptide dosage calculator, reconstitution calculator, injection tracker and dose reminder app in one place, instead of a spreadsheet, a notes app and a separate calculator. IMPORTANT PeptideOS is an organization, calculation and record-keeping tool. It does not provide medical advice, diagnosis or treatment recommendations, and it does not recommend doses. Always follow applicable laws and the guidance of a qualified professional.