Free · Private · Offline

A private journal for your GLP‑1 journey

Log doses, weight, blood sugar, and side effects. See how your progress compares with the clinical trials. Everything stays on your device.

  • Brand-name pens and tablets
  • Compounded semaglutide and tirzepatide
Gliplog's Today screen: when the next dose is due and an estimate of the medicine in the body over recent doses Gliplog's Progress screen: the change since the first dose, then weight over time

Everything in one place

Your treatment, your progress, and the science behind it.

Doses

Pick a strength from your medicine's label and see when your next dose is due. For a compounded vial, Gliplog also shows the units to draw on a U-100 syringe.

Weight and BMI

Weigh in whenever you like and follow your trend over time. Add your height for BMI, and a goal if you want one.

Blood sugar

Record HbA1c results and glucose readings, in the units your lab or meter uses, and see how they change.

Side effects

Note how you feel and how strongly. See which side effects come up most, and how long after a dose they usually appear.

Estimated levels

See an estimate of how much medicine is in your body between doses, based on its published half-life. Switch brands and the curve carries on.

Trial comparison

Compare your progress with published results from STEP, SURMOUNT, SURPASS, and other trials, for weight, HbA1c, and fasting glucose.

Made by GLP‑1 users, for GLP‑1 users

Gliplog is the journal we wanted for our own treatment: quick to use, clear about progress, and honest about what the trials found. When it's time for an appointment, export a PDF report for your care team. It's free, private, and open source.

A trial comparison card: your change at week 19 beside the STEP 1 averages for placebo and semaglutide 2.4 mg at week 68

Backed by science

Every number in Gliplog comes with its source, one tap away.

  • Trial results are copied exactly as printed in each medicine's US label.
  • Where trials are combined on one chart, Gliplog says so.
  • Trial results are group averages. Your results are your own.
  • Gliplog never recommends a dose. That's for you and your prescriber.

Private by design

No account, no server, and no analytics. Gliplog runs entirely on your device, even offline, and the Android app doesn't request network access.

Your device holds the only copy of your journal, so save a backup from Settings from time to time. You can erase everything whenever you like.

Read the privacy policy

  • No sign-up, email, or phone number needed
  • No tracking, ads, or third-party code
  • Works offline after the first visit
  • Free, with no paywall
  • Open source under the AGPL-3.0

Supported medicines

Brand-name pens and tablets, compounded vials, or any other medicine you add by name.

Semaglutide injections
Ozempic, Wegovy, compounded semaglutide
Tirzepatide injections
Mounjaro, Zepbound, compounded tirzepatide
Daily tablets
Wegovy tablets, Rybelsus, Ozempic tablets, Foundayo (orforglipron)

Dosing schedules, from the label

Starting doses, step-ups, and what to do about a missed dose for Wegovy, Ozempic, Rybelsus, Zepbound, Mounjaro, Saxenda, and Foundayo, as printed in each US label.

See dosing schedules

Brand names are the trademarks of their respective owners and are used only to identify the medicines. Gliplog is not affiliated with, endorsed by, or sponsored by Novo Nordisk, Eli Lilly, or any other manufacturer or pharmacy.

Using research peptides? Try PepCalc, a free, private, offline calculator for reconstituting a vial and reading the draw on your syringe.

Install Gliplog

Open gliplog.com/app on your phone, then add it to your Home Screen. It opens full screen and works offline.

Phone or tablet Steps
iPhone or iPad, Safari Share, then Add to Home Screen
iPhone or iPad, Chrome Share (in the address bar), then Add to Home Screen
Android, Chrome or Edge Menu, then Install app (or Add to Home screen)
Android, Firefox Menu, then Add app to Home screen

An Android app for Google Play and F-Droid is coming, built from the same open source code.

Questions

Is Gliplog really free?

Yes. No subscription, no ads, and no premium tier. With no server, it costs almost nothing to run.

Where is my data stored?

On your device: in your browser's storage, or inside the Android app. Nothing is sent anywhere. Clearing this site's data or uninstalling the app deletes it, so keep a backup.

Can I move my data to a new phone?

Save a backup in Settings, move the file to the new phone, and restore it there. On iPhone, Safari and the home-screen app keep separate data, so use a backup to move between them too.

Can I share my journal with my doctor?

Yes. On the Progress screen, export a PDF report of your medicines, weight, blood sugar, side effects, and doses for the last 30 days, the last 90 days, or everything, with charts of your trends, estimated levels and trial comparisons. You choose which parts to include. It's made on your device and goes only where you send it.

I use research peptides. Is Gliplog for me?

Gliplog is built around labelled medicines and compounded vials. For research peptides, try PepCalc: it works out how much water to add to a vial and how far to draw the syringe. Like Gliplog, it's free, runs offline, keeps everything on your device, and never recommends a dose.

Does Gliplog tell me what dose to take?

No. It shows the strengths and schedules printed on each medicine's label for reference, and does the arithmetic. Your prescriber decides your dose. The dosing schedules page sets out each label's schedule.

Why is there no level chart for semaglutide tablets?

Only about 1% to 2% of a semaglutide tablet is absorbed, and the amount varies from day to day. An estimate from the tablet's strength would be misleading, so Gliplog doesn't show one.

Is it medical advice?

No. Gliplog is a journal and a calculator, not a medical device. It doesn't replace your prescriber, pharmacist, or care team.