Log shots, track weight, monitor side effects, and watch your progress unfold — all private, all on your device.
Peptly keeps it focused — the tools that actually matter for a GLP-1 journey, beautifully organised and private by design.
Log every injection in seconds — medication, dose, site, and date. Peptly tracks your full shot history and tells you exactly when your next dose is due.
Log your weight and watch the trend over time. See your total loss, weekly changes, and your journey plotted on a clean chart that shows real progress.
Track nausea, heartburn, appetite suppression, injection site reactions, and more. Spot patterns and share a clear picture with your healthcare provider.
See a real-time estimate of your medication's serum concentration over time, based on published pharmacokinetic data for your specific GLP-1.
A full calendar view of every shot logged. See your adherence at a glance — helpful for spotting gaps or confirming your schedule before an appointment.
Your complete story in one place — total weight lost, days on medication, shots taken, and a shareable card to celebrate your milestones.
Peptly supports approved GLP-1 medications, research peptides like Retatrutide, and fully custom entries — so whatever you're tracking, it fits. Serum graphs and next-dose countdowns are calibrated to each compound's specific half-life and dosing schedule.
Approved GLP-1 Medications
Research Peptides
Peptly tracks the full picture of your GLP-1 journey — not just the scale. Side effects, adherence, serum levels, and weight trends all connect to show you what's actually working.
Weekly and all-time charts plotted from every weigh-in you log. Filtered views for close-up or long-range perspective.
Your full injection history on a calendar. See exactly how consistent your schedule has been at a glance.
A real-time graph of your estimated drug levels based on your shot history and published PK data for your medication.
A clean, branded card with your key milestones — ready to share with your community or bring to your next appointment.
Your GLP-1 journey involves some of the most personal data imaginable. Peptly is built so that none of it ever has to leave your hands.
Read our full Privacy Policy →Whether you're on week 1 or year 2, Peptly meets you where you are.
New to Ozempic or Mounjaro? Peptly helps you build a solid tracking habit from day one — shots, weight, side effects, all in one place.
Love seeing the numbers? Weight trends, serum graphs, and adherence calendars give you the full quantified picture of your progress.
Share your journey card and side effect history with your healthcare provider. Walk into every appointment with a clear, complete picture.
Months in and still going strong? Your full history is right there — every shot, every lb, every milestone — from day one to today.