About Setva: who builds this and why
Setva is an iPhone app for people on a GLP-1. It logs your dose, draws an estimate of what is still in your body, and keeps the record on your phone. This page is about who makes it, where the numbers come from, and what we are not.
We do not have a doctor on staff. No physician, no pharmacist, no former regulator, no medical advisory board, and we are not going to borrow a white coat to make this page look heavier than it is. What we have instead is a rule we keep: every number and every claim on this site is written and checked by the Setva team against primary sources, mostly FDA prescribing information, DailyMed and studies indexed on PubMed, and the source is printed at the bottom of the page so you can go read it yourself. That makes this educational material, not medical advice. It has not examined you, it does not know your history or your other prescriptions, and it is not a second opinion. Your prescriber and your pharmacist are the only people who should tell you what dose to take, when to change it, and what to do about a side effect that will not lift. If anything here ever contradicts what they told you, believe them, and then write to us so we can correct the page.
Why this app exists
A weekly shot has nothing to attach itself to. You take it, six days pass, and the week has moved on before you think about it again. A daily pill at least rides on breakfast.
The harder part is that the week is not flat. Day 2 rarely feels like day 6, and nobody explains why. Most apps answer that with a list of dates, or with a calorie counter you never asked for.
Setva was built for the middle of it: what is happening in your body this week, and never missing the shot.
What Setva does, and what it will never do
It logs weekly injections and daily tablets. The dose in milligrams is editable, injection sites rotate on a body map, and the full history stays there. Logging takes two taps.
It sends one time-sensitive reminder on the day of your dose, and a single follow up if you have not logged it hours later. Never a third. No streaks, no guilt, no scolding for a week you missed.
Side effects go in with one tap and an intensity, then line up against the day of your dose cycle, which is how a pattern like day 2 becomes something you can see instead of something you suspect. Weight uses a 7 day moving average and can read from Apple Health. There is a home screen widget, a lock screen widget, a Live Activity on dose day and an Apple Watch app.
What it does not have: no calorie counter, no food database, no macros, no photo of your plate. No community feed. No AI coach. No character or mascot. No Android version and no web version of the app. No free tier and no trial. Setva is 79.99 USD a year or 12.99 USD a week.
The app is not on the App Store yet. The waitlist on the home page is how you hear about launch day.
How the curve is built, and how to check it
The estimated level is a one compartment model. Each dose decays by the published elimination half life of that product, and the doses overlap, which is why the line keeps climbing for several weeks after you start or move up before it settles into a repeating rise and fall.
The half lives come from FDA prescribing information and published pharmacokinetic data. The number we use for each product is printed on that product's page with a link to the source. Semaglutide is about 7 days, tirzepatide about 5. Nothing is picked in private.
You can run the same math yourself at setva.app/glp-1-calculator. It is free, needs no account and calculates in your browser.
It is an educational estimate built from the doses you logged and the half life on the label. It is not a measurement of your blood, it does not know your kidney function or your body weight, and it never suggests a change to your dose.
How we write what you read here
Every drug page and every article is written against primary sources: FDA prescribing information, DailyMed, and peer reviewed work indexed on PubMed. The sources sit at the bottom of the page with links, so you can read the label without taking our word for it.
If a medicine has no reliable published half life, it gets no curve, and the page says so in plain words instead of guessing a number.
Pages carry the date they were written. Labels change, and when one changes the page changes with it. If you find something out of date or wrong, tell us and we will fix it or say why we disagree.
Your health data stays on your iPhone
There is no account and no password, because there is nothing of yours on a server of ours. Doses, injection sites, symptoms and weight live on your iPhone, and reach your other devices through your own private iCloud.
That is a deliberate choice, not a missing feature. A record of a GLP-1 prescription is exactly the kind of thing people do not want sitting in someone else's database.
The product analytics we do collect count that a dose was logged, never what was logged. No medicine name, no milligrams, no symptom leaves the phone.
Who builds Setva
Setva is made by Digital Nafta FZCO, a small software company. The app is the product and the price is the business model. We take no money from any drug maker, pharmacy or telehealth clinic, and there are no ads in the app.
The same small team writes the app, the curve model and the pages on this site. One email address reaches us, jannafta@gmail.com, and a person reads it.