Buyer's Guide · 2026
Tracking semaglutide, tirzepatide, or another GLP-1? The right app keeps your weekly doses, titration, and weight in one place. Here's what matters — and how the options compare.
Log each injection with the date and site, and never lose track of your weekly shot.
GLP-1 doses step up over time — a good app makes it easy to follow your schedule.
If you reconstitute your own vials, built-in calculators keep every dose accurate.
Track weight and body measurements alongside your doses to see progress.
Stay consistent with reminders and a clear view of your adherence.
Sensitive health data kept private, never sold, no ad tracking.
Peptidy tracks the full GLP-1 range — semaglutide, tirzepatide, retatrutide, cagrilintide and more — with weekly dose logging, body-metric tracking, adherence, and free reconstitution calculators for each compound. It's ideal if you reconstitute your own vials or want the titration and dosing maths handled in one place, across web and iOS.
Try Peptidy free →Apps like Shotsy are designed around GLP-1 weight-loss medications, with a clean interface for logging shots and weight. A good fit if you take a pre-filled pen and only need reminders and a weight chart — less suited to self-reconstituted vials or dosing calculators.
Peptidy vs Shotsy →Standalone calculators help you work out concentration and units for a reconstituted GLP-1 vial, but they don't log your injections or track your titration and weight over time.
Semaglutide calculator →Free and flexible, but no reminders, no dose calculators, and no adherence view — and it becomes hard to maintain across a multi-month titration.
The best GLP-1 trackers log your weekly dose, follow your titration schedule, track your weight, and — if you reconstitute your own vials — include dose calculators. Peptidy does all of this across web and iOS, with compound-specific calculators for semaglutide, tirzepatide, retatrutide and more.
Yes. Peptidy lets you log each weekly injection and see your history, so following a stepped titration (for example 0.25mg → 0.5mg → 1mg semaglutide) is straightforward.
Yes. Peptidy includes free reconstitution calculators for semaglutide, tirzepatide, retatrutide, and cagrilintide, giving you concentration and syringe units for each weekly dose.
Peptidy keeps your data private, never sells it, and runs no ad tracking. It is a personal record-keeping tool and does not provide medical advice — consult a healthcare professional before making medical decisions.
Weekly dose logging, titration history, weight tracking, and free reconstitution calculators — on web and iOS.