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GLP-1 dose tracker

The dose is the anchor of the whole record. Everything else — how a Tuesday felt, why appetite fell off a cliff on day two, what the scale did — reads differently depending on where in the cycle it happened. Cafeity records the dose first and hangs the rest of the week off it.

General wellness reference · 12 sections · about 1000 words

What a dose record holds

The date and time, the amount you were prescribed, the medication as a plain label, and the injection site. That is deliberately close to what a prescriber would ask, so the record answers the question rather than needing translation at the appointment.

It is also deliberately dumb. There is no field for how you think the dose went, no score, no streak. A dose record is a fact about what happened, and the moment an app starts grading it, the record stops being neutral.

The cycle, not the calendar

Most trackers organise by day. On a weekly medication, the more useful axis is position in the cycle, which is why the Cycle View draws an estimated level from your logged dose dates and the published half-life for that molecule. The half-life is the only thing that differs between medications; the model is identical.

The comparison chart on the trackers index shows how much that one number changes the picture — a single dose of liraglutide is essentially gone in three days, while a single dose of semaglutide is still around half-present after a week.

Line chart comparing how a single dose of each medication decays over fourteen days
A single dose of each medication, modelled over fourteen days and normalised to its own starting point. Only the half-life differs between these lines.

Reminders you set, never suggestions we make

You can set a reminder for a schedule you were given. Cafeity will never propose a schedule, suggest moving a dose, or comment on an amount. There is no code path in the app that does any of those things — it is a structural property, not a policy that could be relaxed in a later release.

This is the clearest single difference between Cafeity and most of the category, and it is a real cost: dose-timing guidance is a popular feature. The reasoning is set out in full on the comparison pages.

Changes and gaps are part of the record

Titration steps, a late dose, a skipped week — all of it is loggable exactly as it happened. A record that only accepts the ideal version of events is not much use at an appointment, and quietly teaches you to stop logging the weeks that went badly, which are usually the informative ones.

Gentle mode exists for the same reason: on a rough week, logging drops to the minimum rather than breaking entirely.

What the record holds

Every entry below sits on one timeline, so any of them can be read against where you were in the medication cycle when it happened.

  • Doses — date, time, the amount you were prescribed, and the medication as a plain label.
  • Injection site, on a body map, so rotation is visible rather than remembered.
  • Meals, with protein, fibre and hydration derived from what you logged.
  • Symptoms, in your words, with your own severity rating.
  • Weight and measurements, shown as a trend rather than a daily verdict.

Inside the app

Screenshots from Cafeity on iPhone. The app is on the App Store; screens change as it is updated.

Recording a dose — date, time, prescribed amount and injection site on one screen.
Recording a dose — date, time, prescribed amount and injection site on one screen.
This week — protein, energy, water, weight trend and symptom days, summarised.
This week — protein, energy, water, weight trend and symptom days, summarised.
The Visit Summary — a one-page, print-ready export built from a period you choose.
The Visit Summary — a one-page, print-ready export built from a period you choose.

Across every medication

This works the same way whichever medication you are on — the only thing that changes is the half-life behind the curve.

  • Semaglutide — once weekly, published half-life about 7 days (roughly 165 hours).
  • Tirzepatide — once weekly, published half-life about 5 days (roughly 117 hours).
  • Liraglutide — once daily, published half-life about 13 hours.
  • Dulaglutide — once weekly, published half-life about 4.7 days (roughly 112 hours).
  • Exenatide — twice daily, or weekly in the extended-release form, published half-life about 2.4 hours for the immediate-release form.

Where your data lives

On your device and in your own account, under per-record permissions. Health data is never stored in iCloud, never sold, never used for advertising, and never used as training data.

You can export everything in one file at any time, and you can delete the record entirely. When you want to bring something to an appointment, the Visit Summary builds a one-page, print-ready PDF from a period and the sections you choose — and nothing leaves the phone until you do that yourself.

What Cafeity will never do

  • Recommend, calculate or adjust a dose, or tell you when to take one.
  • Interpret a symptom, name a condition, or suggest what is causing something.
  • Predict how much weight you will lose, or when.
  • Set a calorie target below 1,200 kcal, or a weight goal below a BMI of 18.5.

Cafeity is a general wellness product. It does not diagnose, treat, cure, mitigate or prevent any disease or condition. Questions about your treatment belong with a licensed healthcare professional.

Common questions

Will it remind me to take my dose?
It can remind you of a schedule you enter yourself. It will not choose or suggest one.
Does it work with any GLP-1?
Yes — semaglutide, tirzepatide, liraglutide, dulaglutide, exenatide and others are labels on a dose record. Only the half-life used by the model changes.
Does it work with compounded medication?
Yes. Cafeity is provider-agnostic and records what you enter. It does not source, verify or recommend medication.
Is my dose history stored in iCloud?
No. Health data is never stored in iCloud, never sold and never used for advertising.

Further reading

Cafeity is a record-keeping tool, not a drug reference. Anything clinical — what a medication is approved for, who should not take it, what to watch for, how it interacts with other medicines — belongs with the sources below and with your own prescriber.

External links open in a new tab. Cafeity is not affiliated with any of these organisations.