GLP-1 & peptide tracking

Track every dose, weigh-in, and goal.

Agonist helps you stay consistent on GLP-1 and peptide protocols — with smart reminders, clear progress, and your data kept private.

3-day free trial · Cancel anytime · iPhone

Agonist weight screen showing a downward weight trend line and total change. Agonist dose reminder on the iPhone lock screen.
Everything in one place

Built for consistency

The essentials for staying on protocol — nothing you don't need.

Dose tracking & smart reminders

Schedule each peptide — daily, weekly, bi-weekly, or every N days — and get reminded right on time. Agonist even notes your last injection site so you can rotate.

"In your system" graph

A pharmacokinetic curve estimates how much of each compound is active, based on your dose, timing, and its half-life.

Weight trends & projections

Log your weight, see a smoothed trend line, and get a projected date to reach your goal.

Consistency heatmap

A GitHub-style streak grid turns daily weigh-ins into a habit you'll actually want to keep.

Home-screen widgets

Your weigh-in streak and your next due dose, right on your Home Screen at a glance.

Private & synced

Your data is yours. Create an account to securely back up and sync across all of your devices.

How it works

Set it up once. Stay on track.

1

Add your protocol

Enter each compound, dose, and schedule. Tirzepatide, semaglutide, retatrutide, BPC-157 — track whatever you're on.

2

Log doses & weight

Tap to log an injection and weigh in. Reminders keep you on schedule and suggest your next site.

3

Watch your progress

See your trend line, projected goal date, active-compound graph, and a growing streak.

A closer look

Calm, clear, and quick

Designed to take seconds a day — so logging actually sticks.

Pricing

Start free, then pick a plan

Every plan includes a 3-day free trial. Cancel anytime.

Monthly
$4.99 / month

Billed monthly via the App Store.

Start free trial

All purchases are processed by Apple through your App Store account. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends.

FAQ

Good to know

Is my data private?

Yes. Most of what you log is stored on your device. If you create an account, your data is securely synced and backed up so it's available across your devices — never sold, and never used for third-party advertising. See our Privacy Policy.

Is Agonist medical advice?

No. Agonist is a personal tracking tool, not a medical device. It does not provide medical advice, diagnosis, treatment, or dosing recommendations. Always consult a qualified healthcare professional regarding any medication or health decision.

Which compounds can I track?

Any peptide or medication you're managing — for example tirzepatide, semaglutide, retatrutide, or BPC-157. You set the name, dose, units, and schedule yourself.

Does it sync across devices?

Yes. Create an account and your tracked data backs up to secure cloud storage and syncs across your iPhone and other devices.

How do I cancel my subscription?

Manage or cancel anytime in the App Store: open Settings on your iPhone, tap your name, then Subscriptions, and select Agonist. Cancelling stops future renewals; you keep access until the end of the current period.

How do I delete my account and data?

In the app, go to Settings → Delete account to permanently remove your account and its synced data. You can also email apps@bitart.sk to request deletion.

Stay consistent with Agonist

Track your protocol, watch your progress, and keep it private.

Download on the App Store