Keep your peptide protocol organized.

Plan your peptide and GLP-1 schedules, log your doses, and track what's left in each vial. Use Peptide Tracker on iPhone, Android, or the web.

100% free. No subscription. No paywall.

Peptide Tracker is used by over 100,000 people and is rated 4.9 stars in the App Store. Over 2.4k ratings.

Keep your daily tracking together.

Your peptide protocols, dose history, symptoms, and inventory stay together in one app.

Plan doses and reminders.

Set daily, weekly, interval, or on-and-off schedules. Get dose reminders on your phone.

For supported protocols, a titration schedule follows the dose changes you enter.

See your dose history.

Log scheduled and as-needed doses, then review your history by day or month in the dose calendar.

See taken, skipped, and missed doses alongside your adherence over time.

Know what's left.

Track sealed and ready-to-use vials, blends, BAC water, pens, sprays, capsules, and tablets.

Logging from a container updates its remaining supply. Check doses left and review its history.

Track how you feel.

Log symptoms on iPhone, Android, or the web. Mark the days you had them, record their impact, and add notes.

Review the compounds and doses you logged on those days alongside each symptom.

Keep tracking from your browser.

Review your schedule, log doses and symptoms, and manage your inventory on a larger screen. Sign in to the same account you use on your phone to pick up where you left off.

Use the web app

Calculate your draw and explore half-life.

Measure with the reconstitution calculator.

Enter your vial strength, water volume, and target dose to calculate a draw in U-100 syringe units. It works with premixed vials too.

Use the reconstitution calculator

See estimated plasma levels.

Explore how logged doses and compound half-life shape an estimated curve over time. These estimates do not measure what is in your body.

Explore the half-life calculator

Keep the details that matter to you.

Keep track of injection sites.

Save your sites in groups and record where you log each dose. Review the last used site when you rotate.

Compare your progress photos.

In the mobile app, align each new photo, browse by month, and compare any two photos side by side.

Ask questions with AI chat.

The mobile app's AI chat explains terminology and draws on the library, courses, and available tracking records. Answers can be wrong and do not replace medical advice.

Talk with the Connect community.

Ask questions and share experiences under your username in the mobile app. Community notes, reporting, and blocking help you manage what you see.

Get to know the compounds you track.

The peptide library covers half-life, dosing references, side effects, routes, and storage. Add custom compounds and blends when you need them.

Browse the full library

Learn at your own pace.

Free courses walk through peptide basics, terminology, and tracking.

Read the courses

Get answers before you start.

What is Peptide Tracker?

Peptide Tracker is a free app for iPhone, Android, and the web that keeps a peptide protocol organized in one place. You set up each compound's dose and schedule once, then log doses as they come due, track your vials, and watch your adherence and progress over time. Your account works on all three platforms.

Adding your first protocol
Is Peptide Tracker free?

The entire app is 100% free on iPhone, Android, and the web. No subscription is required. An optional annual Founding Member membership supports development.

Can I use Peptide Tracker in a browser?

Yes. You can create protocols, log doses and symptoms, review your dose calendar, and manage inventory in the web app. Sign in to the same account you use on your phone to access your existing records. Web tracking is free and does not require a Founding Member membership.

What health data can I track?

You can track symptoms on iPhone, Android, and the web. In the mobile app, you can also chart your weight, sleep, activity, and heart measurements alongside your protocols and dose changes. Connect Apple Health on iPhone or Health Connect on Android to import the readings you choose to share, or enter measurements yourself.

Can I track symptoms on my phone and the web?

Yes. Choose a symptom from the list or describe it in your own words, mark the days you had it, record how much it affected your day, and add notes. You can review, edit, or delete your entries on iPhone, Android, and the web using the same account. Each entry also shows the compounds and doses you logged on the days you marked. This provides context but does not determine what caused a symptom.

Does it include a peptide reconstitution calculator?

Yes. The calculator converts vial strength, diluent volume, and target dose into an exact draw in U-100 syringe units, and it handles premixed vials too. A web version runs on this site without an account.

Using the reconstitution calculator to measure
Can I track more than one peptide at a time?

Yes. Create a separate protocol for each compound or blend, with its own dose, timing, and frequency. The Today screen brings your protocols together into one daily schedule. Schedule blocks let you enter different doses and times within a protocol.

Different doses and times with blocks
Which compounds can I track?

The library covers GLP-1s such as semaglutide, tirzepatide, and retatrutide alongside peptides such as BPC-157, TB-500, GHK-Cu, CJC-1295, and ipamorelin. You can also add NAD+, TRT and HRT compounds, your own custom compounds, and blends that hold more than one compound in a single vial.

Creating a custom compound
Does Peptide Tracker give dosing advice?

No. The app records the protocol you choose and does the math for it. It does not recommend compounds, doses, frequency, or clinical use, and nothing in it is medical advice.

Is my data private?

Your protocol, doses, and measurements are private to your account, and nothing is shared unless you choose to post it. You can export your data by contacting us at any time, and you can delete your account and its data from inside the app.

Give your protocol a place to live.

Start with your schedule and keep your records together on your phone or in your browser.