Know what your body is doing this week
Day 2 rarely feels like day 6, and a list of dates never explains why. Setva logs your shot, estimates where the dose sits today, and shows you the shape your week has been following all along.
Setva is finished and on its way to the App Store. This is the waitlist: leave your email and you get one message, on the day it goes live.
- Your health data never leaves your iPhone
- No account, no login, no server of ours
- One reminder on dose day, no streaks, no guilt
See where your dose sits right now
Your level does not reset every week, it builds. Setva estimates where you are today from the published half-life of your drug and draws the days ahead, with the point for right now marked on the line. It is an educational estimate, not a measurement of your blood.
Two taps and the week is logged
Open the sheet, pick the site on the body map, confirm. The map keeps the last sites you used in view, so rotation is something you can see instead of something you try to remember. Dose in milligrams is editable, so a titration step takes seconds.
One reminder on the day, one nudge if you forget
The reminder is time-sensitive, so it comes through Focus on the day of your shot. If you have not logged it a few hours later, you get one more nudge. There is never a third, and there is nothing to break by missing one.
Dose day stays on your Lock Screen until it is done
On the day of your shot a Live Activity sits on the Lock Screen and in the Dynamic Island with the countdown. Log from there without opening the app. It disappears the moment you do.
Log it from your wrist
The Watch app carries the curve, the dose button and the side effect chips. If your phone is in another room or in a bag, the shot still gets recorded at the right minute instead of from memory that evening.
Find out that day 2 is the hard one
Tap a chip when something shows up: nausea, fatigue, reflux, headache, each with an intensity. After a few cycles Setva lines those taps up against the day of your dose cycle. What felt random turns out to have a day attached to it.
Weight without the daily noise
Enter a number in a second, or let Setva read it from Health. The chart runs a 7 day moving average, so a salty dinner does not read as a bad week. No goal weight shouting at you from the top of the screen.
The math is written down, not hidden
Setva uses a one compartment model with the half-life published for your drug, about 7 days for semaglutide and about 5 days for tirzepatide. The app shows you those assumptions in plain language, on the screen, next to the curve. It is there to help you read your week, not to replace anything your prescriber does.
Your data stays on your iPhone
There is no account to create and no password to lose. Setva has no server holding your doses, your symptoms or your weight. What you log lives on your iPhone, and if you use iCloud, in your own private iCloud.
That is also how you move to a new iPhone without asking us for anything. Sign in with your Apple Account and your history is there. We could not read it if we wanted to, because it was never ours to hold.
- No account and no login, the app never asks for your email
- Doses, sites, side effects and weight stay on the device
- Your history restores from your own private iCloud
- Apple handles the payment, we never see your card
Try the curve before the app arrives
The same estimate that sits at the top of Setva runs free in your browser. Pick your drug, your dose and the day you take it, then read the next few weeks. Nothing to install, nothing to sign up for, and the math happens on your own device.
Questions people ask
Is Setva available yet?
Not yet. The iPhone app is built and on its way to the App Store. Join the waitlist and you get one email on the day it goes live, nothing before and nothing after. The curve calculator on this site is free and works right now.
What does Setva cost?
79.99 US dollars per year, or 12.99 per week if you would rather pay that way. There is no free trial and no version funded by ads. One payment opens the whole app, including the Apple Watch app, the widgets and the Live Activity.
What happens to my health data?
It stays on your iPhone and syncs only to your own private iCloud. We run no server that holds it, there is no account attached to it, and we have no way to read it. Nothing about your drug, your dose or your symptoms is sent to us or to anyone else.
Which medications does it cover?
The weekly semaglutide and tirzepatide injections, the daily semaglutide tablets, daily liraglutide, and the newer daily orforglipron tablets. Each drug uses its own published half-life, so the curve is not one generic shape reused for everything.
Is the curve a measurement of what is in my blood?
No. It is an educational estimate built from a one compartment model and the half-life published for your drug. Your real levels depend on your own body, and only a lab can measure them. The app says exactly that on the screen where the curve lives.
Does Setva tell me what dose to take?
No, and it never will. Setva records the dose you were already prescribed and shows you what your week looks like at that dose. Anything about raising, lowering, splitting or skipping a dose belongs with your prescriber.
Will it nag me if I miss a shot?
One time-sensitive reminder on the day of your dose, and one more a few hours later if you have not logged it. That is the ceiling. There are no streaks, no badges counting missed days and no messages telling you that you fell behind.
Is there an Android version or a web app?
No. Setva is an iPhone app with an Apple Watch companion and widgets. The curve calculator on this site runs in any browser, but it is a calculator and not the app.
Be first when Setva launches
Leave your email and you hear from us once, on the day the app reaches the App Store. No newsletter, no sequence of reminders. Until then the curve calculator is free and asks nothing of you.
One email when it launches. Nothing else.