Cloud apps lock you out
Data gone when they change pricing or shut down.
Peptide Log
Track injections. Private by default.
No account. No subscription. Your GLP-1 data stays on your iPhone.
Be one of the first 100 — join the beta. Free, no subscription ever.
Private by default
No account needed
Log in 10 seconds
Pre-filled dose, one tap
Doctor-ready export
PDF or CSV in one tap
Why I built this
I lost 6 months of injection history to a cloud app.
Most GLP-1 tracker apps require an account, charge a subscription, and store your health data on their servers. Peptide Log is different.
Subscriptions for basic logging
$15/month just to track a weekly injection.
Your health data on their servers
Injection logs, weight, side effects — who else sees it?
How it works
The Ozempic, Wegovy, Mounjaro & Tirzepatide tracker that respects your privacy.
Peptide Log is a free GLP-1 injection tracker for iPhone. Log your Semaglutide or Tirzepatide dose in seconds, track your weight trend, and review your full injection history — no account, no subscription, no cloud required.
1. Log your dose
Tap once to record your Semaglutide or Tirzepatide injection. Pre-filled dose and smart injection site rotation saves time every week.
2. Track your progress
See your estimated medication level on a half-life chart, monitor weight trends, and log side effects — all in one GLP-1 tracker app.
3. Share with your doctor
Export your full injection, weight, and side effect history as a PDF or CSV — ready for your next doctor visit or telehealth appointment.
App features
Private & secure
Private by default. Ready for your doctor.
Your data stays private on your iPhone. Optional cloud sync — your data goes to your own private account, never our servers. Need to share? Export a clean PDF or CSV for your next doctor visit.
History that matters
Every shot, tracked.
See your full injection, weight, and symptom history in one place. Filter by medication to spot patterns and stay in control of your dose schedule and injection site rotation.
Medication levels
Know where you stand between doses.
See your estimated medication level on a half-life chart — so you understand where Semaglutide or Tirzepatide sits between injections. Recent activity keeps your last shots and weight entries in one place.
Multi-medication
Every medication, tracked separately.
Switch between Semaglutide and Tirzepatide — often sold as Ozempic, Wegovy, Mounjaro, or Zepbound — each with its own titration schedule, next-dose reminder, and injection log.
FAQ
Questions about Peptide Log
What is Peptide Log?
Peptide Log is a free GLP-1 and peptide injection tracker for iPhone. It helps you log Semaglutide and Tirzepatide doses — the compounds behind medications like Ozempic, Wegovy, Mounjaro, and Zepbound — track injection sites, monitor weight trends, log side effects, and export your history for your doctor. Unlike other GLP-1 tracker apps, Peptide Log requires no account and stores all data on your iPhone by default. There is no subscription required to use any feature.
Does Peptide Log work with Semaglutide and Tirzepatide?
Yes. Peptide Log tracks Semaglutide and Tirzepatide — the active compounds behind Ozempic, Wegovy, Mounjaro, and Zepbound, as well as research peptide versions. Each medication gets its own titration schedule, injection history, next-dose reminder, and estimated medication level chart based on its half-life. You can track multiple GLP-1 medications simultaneously and switch between them in one tap.
Is Peptide Log free? Does it require a subscription?
Peptide Log is free during the beta period, and beta users receive lifetime free access to future premium features. There is no subscription required to log injections, track weight, record side effects, or export your data as a PDF or CSV. The app earns nothing from your health data — there are no ads, no data sales, and no paywalled logging features.
Is my injection and weight data private?
Yes. All data is stored on your iPhone by default — no account is required to use the app, and nothing is sent to Peptide Log's servers. Optional cloud sync sends your data to your own private account only, never to our servers. You can delete all your data at any time from Settings. Peptide Log does not sell, share, or analyse your health data.
Can I export my injection history for my doctor?
Yes. Peptide Log lets you export your full injection, weight, and side effect history as a PDF or CSV in one tap — formatted and ready for your next doctor visit or telehealth appointment. The PDF includes your titration schedule, dose history, weight trend, and logged side effects so your healthcare provider has everything in one document.
Does Peptide Log sync between my devices?
Optional cloud sync is available in Settings and is off by default. When you enable it, your data syncs to your own private account across your Apple devices — never to our servers. You can also turn it off at any time and your data stays on your device. The app is fully functional without sync — no account is required.
Beta
Join the beta.
Be one of the first 100 beta testers for the private GLP-1 tracker built by someone who uses it.
No data collection
iOS native
Privacy-first
No subscription
"I built this after losing my own injection data to a cloud app that raised its prices. One person, one app — no company harvesting your health data."
Solo dev, Peptide Log
Built for GLP-1 patients who want control of their data
Cloud sync is off by default. When enabled, your data syncs to your own private account — never our servers.
Get early access to the private GLP-1 tracker.
Beta users get lifetime free access to future premium features. Track Semaglutide, Tirzepatide, weight, and side effects — no account required.
We'll email you when beta access opens — usually within the week.
Peptide Log is for tracking and informational purposes only. It does not provide medical advice, diagnosis, or treatment. Always consult your healthcare provider before making any medical decisions.