GLP1.app

GLP1.app is a free, no-signup web app for people using GLP-1 medications (semaglutide, tirzepatide, liraglutide) and research peptides. It logs each dose with date, amount and injection site, keeps a running titration schedule so you can see when the next step-up is due, and rotates injection sites to avoid repeating the same spot. It also includes reconstitution and unit calculators that convert a vial's mg strength and diluent volume into the exact units to draw on a U-100 syringe, plus half-life and weight-loss timeline charts. Everything runs in the browser and your log stays on your device. There is no account, no paywall and no advertising.