Ozempic tracker: know where your dose sits this week
You take Ozempic once a week, but you do not live the week in one flat piece. Day 2 rarely feels like day 6. A tracker earns its place when it tells you where you are in that week, not just that you took the shot.
Setva is on its way to the App Store. The curve calculator on this site is free today.
An Ozempic tracker records the date, dose and injection site of your weekly semaglutide shot, and estimates how much is still in your body on any given day using the published half-life of about 7 days. The useful ones tie your side effects to the day of the dose cycle, so the pattern becomes visible.
Draw the Ozempic curve for free, right in your browser, no signup.
What Ozempic is and how it is dosed
Ozempic is the Novo Nordisk brand of semaglutide, a GLP-1 receptor agonist injected once every 7 days. The FDA approved it in December 2017 for type 2 diabetes in adults. It is not approved for weight management.
The pen comes in 0.25 mg, 0.5 mg, 1 mg and 2 mg. The 0.25 mg pen is a starting dose for the first 4 weeks and the label says it is not effective for glycemic control, so it is a step on the ladder rather than a place to stay. Novo Nordisk also sells semaglutide tablets under the Ozempic name at 1.5 mg, 4 mg and 9 mg once daily, so check which form you were prescribed.
Semaglutide has a published elimination half-life of about 7 days. That single number explains most of what your week feels like.
What an Ozempic tracker actually needs to do
Logging the shot is the easy part. What most apps skip is the shape of the week.
With a half-life near 7 days and a dose every 7 days, the amount in your body does not reset each week. It builds. After a start or a dose increase, the estimated level climbs for four or five weeks before it settles into a steady rise and fall.
That is why the same dose can feel different in week two than in week six. A list of dates shows none of it.
- Date, time and dose in milligrams for every shot
- The site you used, so rotation is visible
- An estimated level for today and the days ahead
- Side effects tagged with the day of the cycle
- Weight on a 7 day moving average
Side effects follow the week, not the calendar
Nausea, fatigue, reflux and constipation are common with GLP-1 medicines, and they rarely land at random. If you inject on Sunday, day 2 is Tuesday, and Tuesday keeps being the day you cannot look at food.
Memory will not show you that. Four Tuesdays in a row is a pattern. Four bad days scattered across a month is just a bad month.
Once you can see it, you can plan around it. Not by changing the medicine, which is your prescriber's call, but by moving the heavy day.
The real problem with a weekly shot is remembering it
A daily pill attaches itself to a routine. A weekly injection has none. You do it, then nothing for six days, and by then the week has moved on.
What works is one reminder on the day, delivered so it breaks through, and a single follow up if you have not logged it hours later. Not a third one, and nothing that treats a missed week as a failure.
If you do miss a dose, the honest thing an app can do is show what your estimated level did and point you at your prescriber.
Your Ozempic records should stay on your phone
Dose history, injection sites, symptoms and weight are health records about a medicine that still draws comment at work and in family group chats.
The answer worth accepting from any app is that the data never leaves your device: no account, no password, no copy on a company server. Syncing to a second phone should go through your own private iCloud.
How Setva tracks Ozempic
Setva is an iPhone app built around this. You log a shot in two taps, pick the site on a body map, and the first screen shows your estimated semaglutide level today with the days ahead drawn out.
The curve uses a one compartment model and the published half-life of about 7 days. It is an educational estimate, not a measurement of your blood, and it never suggests a change to your dose.
Side effects go in with one tap and an intensity, lined up against the day of your cycle. Weight uses a 7 day moving average and can read from Apple Health. There are widgets, a Live Activity on dose day and an Apple Watch app.
Setva is not on the App Store yet. The waitlist is how you hear on launch day. The app will cost 79.99 USD a year or 12.99 USD a week, with no trial. The curve calculator at setva.app/glp-1-calculator is free today and runs in your browser.
Setva is coming to the App Store. Join the waitlist and you will hear from us once, the day it goes live.
Questions people ask
What does an Ozempic tracker track?
Date, time, dose in milligrams and injection site for every shot. A better one adds the estimated level across the week and side effects tagged with the day of the cycle.
How long does Ozempic stay in your system?
Semaglutide has a published elimination half-life of about 7 days, so about half a dose is still there a week later. One dose takes on the order of five weeks to clear almost entirely.
Is the curve the same as a blood test?
No. It is a model built from your logged doses and the half-life on the label. Read it as an educational estimate, never as a measurement.
Can I track the Ozempic tablets instead of the pen?
Yes. The tablets are taken once daily at 1.5 mg, 4 mg or 9 mg. Same molecule and same half-life, but a daily dose builds a much flatter line than a weekly pen.
What should I do if I miss a dose?
Ask your prescriber. That depends on how late you are and what dose you are on, and no app can answer it for you. Setva shows what your estimated level did, and nothing more.
Does the same app work for Wegovy or Mounjaro?
Yes. Setva covers the weekly injections and the daily tablets, each with the half-life published for that product. If your prescription changes brand, the curve is redrawn.
Where does Setva store my data?
On your iPhone, and in your own private iCloud if you use more than one device. There is no account and no server of ours.
How much does Setva cost, and is there a trial?
79.99 USD a year or 12.99 USD a week, with no trial. The app is not on the App Store yet, so the waitlist is how you hear about launch day.
This is an educational estimate based on published half-life data, not a measurement of your blood. Never change your dose without your prescriber.