The price, up front
The tracker is free forever. Pro is $49.99 a year after a 7-day trial, and you see that before you start. No surprise paywall halfway through setup.
For GLP-1 and peptide shots
Log every pen and every vial, rotate injection sites, snap a meal for its protein, and see your estimated level between doses. Sign in with Apple and your history follows you to any iPhone. No ads, never sold.



Three promises
The tracker is free forever. Pro is $49.99 a year after a 7-day trial, and you see that before you start. No surprise paywall halfway through setup.
Sign in with Apple and every log syncs to your private Linea account. New phone, reinstall, dropped in the sink: sign in and your history comes back.
Weekly pens, daily injections, peptides by vial, nasal spray or cream, or a stack of several. Backdate a dose you forgot and edit anything later.
Features
Linea tracks what you and your provider decide. It never suggests a medication or a dose.
Dose, time and injection site in a few taps. Linea shows when each site was last used, so rotating is easy.

A model of your medication level built from your logged doses and each drug's published half-life. An estimate, not a lab value.

Injection, nasal, topical or oral, each logged the right way. Track a vial from mixing to its last dose, with reconstitution math built in.
Sign in with Apple, no password. Every log and progress photo syncs to your private Linea account, encrypted at rest.
The math you would otherwise do on a napkin, built in.
See patterns across doses, weight and side effects, then share a clean PDF with your prescriber, with the sections you choose.
Snap your plate and Linea AI estimates protein, fiber and calories, item by item. The photo is analyzed, then discarded.
Ask about side effects, protein or your next appointment, with your logs if you choose. It never recommends a dose.
Front, side and back with a ghost overlay to line up each shot. Locked with Face ID by default, never in your camera roll.
Weekly, every few days, weekdays only, twice daily, or cycles of weeks on and off. See every planned dose at a glance.
Turn on discreet mode and reminders just say “Time for your dose”, with no medication name on your lock screen.
A kind line on your Today screen each morning. Save your favourites and share them as a card.
Pricing
Everything you need to log your shots is free forever. Pro adds depth for stacks and appointments.
$0forever
No trial clock, no ads.
Includes
$49.99/ year
After a 7-day free trial. Or $9.99 a month. Billed by Apple, cancel any time.
Everything in Free, plus
Prices in US dollars. Your local App Store price may differ. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period.
Weekly GLP-1 pens like Mounjaro, Zepbound, Ozempic and Wegovy, daily injections, and peptides by injection, nasal spray, topical or oral. Linea logs what you enter. It never suggests a medication, a dose or where to get one.
So your history is never stuck on one phone. You sign in with Apple (you can hide your email), and your logs sync to your private Linea account. Get a new iPhone, sign in, and everything comes back.
Only you. Your logs are stored in Linea's account database, encrypted at rest and locked to your account. We never sell or share them, we don't show ads, and our team can't browse what you log.
Snap your plate and Linea AI estimates protein, fiber and calories for each item. The photo is sent through our server to a third-party AI provider for analysis and then discarded. Neither of us keeps it. It's part of Linea Pro, and you agree before you use it the first time.
A chat assistant for questions about side effects, protein, and getting ready for appointments. If you turn it on, it can read your recent logs to answer. It never recommends or changes a dose, and your conversations stay on your iPhone.
A model of how much medication may be in your body over time, built from the doses you log and each medication's published half-life. It is an estimate to help you see your rhythm, not a lab value.
The core tracker is free forever. Linea Pro is $49.99 a year after a 7-day free trial, or $9.99 a month. Apple bills it, and you can cancel any time in your Apple ID settings.
No. Linea is a tracking tool. Follow the plan from your prescriber, and bring your Linea doctor report to appointments if it helps the conversation.
Yes. Export everything to CSV for free at any time. Settings › Delete account removes your account and every log, photo and setting from our servers and your iPhone.
Linea is almost here. Free to start, private from day one.
Coming soon to theApp Store