
GLP-1 Tracker: Doseline
Semaglutide & tirzepatide log
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Free
About
Doseline keeps the record of a GLP-1 treatment: every dose, the estimated level in your body, where you are in your titration, and the unit math that has to be right.
Every feature listed here is free. No account, no login, no trial that expires. Your records stay on your iPhone.
THE DOSE MATH OTHER TRACKERS SKIP
• mg to mL to units on a U-100 syringe
• Reconstitution: vial strength plus diluent gives you the concentration, and the number of units to draw
• Any increment, including 0.25 mg steps and half doses
• The units marked on a syringe illustration, so you can check what you drew
• Every dose is computed against the pen or vial that was open on its own day, never against today's concentration
ESTIMATED MEDICATION LEVEL
An exponential decay curve built from published half-lives, so you can see the drug accumulate over your first weeks and fall away toward the end of each one. Shown with its source and a plain note that it is an estimate. Free, and it always was.
TITRATION YOU CAN SEE
How long you have been on this step, when the next one is due, and the whole ladder for your medication. Doseline records the step you are on. It never tells you to change it.
WHY A DOSE CHANGED
Record why you stepped up, stepped down, or deliberately held — in your own words, from your own choice. Nothing is guessed. It goes in the report, because "why are you still at 5 mg?" is the question the appointment opens with.
EVERYTHING IS BACKDATABLE
Six weeks in already? Add all six. Every date, dose, site and note stays editable and deletable afterwards, and the level curve and the titration schedule recompute around what you changed.
SUPPLY AND REFILL ALERTS
Doseline counts what is left in milligrams, not in doses taken, so stepping up mid-vial is counted properly. It tells you how many doses remain and when to reorder, before the week you run out.
SIDE EFFECTS AGAINST YOUR DOSE CYCLE
Log a symptom in a few taps and see where it falls in your week. "Most often on day 2 after your shot" is an observation about your own record, and Doseline stays quiet until it has enough of one to say anything at all.
WEIGHT, MEASUREMENTS, PROTEIN AND WATER
Weight with a goal, and waist, hips, chest, arm, thigh and neck on tape. Protein and water are simple counters, because muscle is the thing worth protecting on this drug. No food database, no scoring your meals, and no target Doseline invented for you — the number is yours or there isn't one.
INJECTION SITES
Log where each shot went and see the rotation, with enough sites listed to actually rotate through.
EXPORT, FREE AND UNLIMITED
A PDF summary written for your doctor, plus CSVs of every dose, weight, measurement, side effect and intake entry. No subscription stands between you and your own record. That is the whole point.
PRIVACY
No account. No server of ours. No analytics. Nothing is uploaded, because there is nowhere to upload it to. Your data lives in a database on your phone and in your own encrypted iCloud backup.
INJECTIONS AND PILLS
Semaglutide, tirzepatide, liraglutide, dulaglutide and the oral GLP-1s, branded or compounded. Ozempic®, Wegovy®, Mounjaro®, Zepbound®, Saxenda®, Victoza®, Rybelsus®, Trulicity® and Foundayo® are all in the medication list, and switching between them keeps your history intact instead of flattening it onto whatever you take now.
Doseline is a record-keeping tool for your own data. It does not provide medical advice, diagnosis, or dosing recommendations. Always follow your prescriber's instructions.
All trademarks are the property of their respective owners. Doseline is not affiliated with, endorsed by, or sponsored by Novo Nordisk or Eli Lilly.
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What's New in GLP
1.0
September 4, 2026







