The GLP‑1 journal that's always free, ad-free, paywall-free, subscription-free, sign-up-free, backed by science, yours to export, open source, private.

Track doses, weight, side effects, and estimated levels. No paywalls. No subscriptions. Ever.

Open Gliplog Install on your phone

Works with brand-name pens, tablets, and compounded vials.

Gliplog's Progress screen: the change since the first dose, then weight over time

Gliplog's Today screen: a countdown ring to the next dose, when it is due, and an estimate of the medicine in the body over recent doses

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

Always free. No paywalls. No subscriptions.

Many apps charge for all of this. We don't.

Gliplog

Everything included

No ads$0
Estimated medication levels$0
Charts and trends$0
Trial comparisons$0
PDF progress reports$0
Side effect logging$0
Dose reminders$0
Progress photos$0
Full data backup$0

Total$0.00

Renews: never

Track your whole treatment.

Estimated levels

Estimate what's in your body between doses, from published half-lives.

A chart of estimated semaglutide in the body, rising with each weekly dose and falling after the last one

Doses

Label strengths. A countdown to your next dose. Syringe units for compounded vials.

Weight and BMI

Your trend, with doses and levels on the same chart.

Gliplog's Progress screen with the change since the first dose

Trial comparison

Your progress beside STEP, SURMOUNT, and SURPASS. For weight, HbA1c, and fasting glucose.

A chart of your weight change beside published semaglutide trial results, by week

Side effects

Log what you feel. See what comes up most, and when.

Blood sugar

HbA1c and glucose, in your lab's units.

Progress reports

A PDF for your care team. 30 days, 90 days, or everything.

Reminders

A notification when a dose is due. Or put it on your calendar.

Progress photos

Only you see them. Compare side by side.

Two friends laughing on a walk down a tree-lined street in autumn

Backed by science.

Every number links to its source.

Trial results copied from each US label
Combined trials are labelled
Trial results are group averages
Gliplog never recommends a dose

Made by GLP‑1 users. For GLP‑1 users.

The journal we wanted. Now it's yours.

Your data. On your device.

Not our server. Not our cloud.

No account
No tracking
No third-party code
Works offline
Android app requests no network access
Open source under the AGPL-3.0

Your device holds the only copy. Back it up in Settings.

Read the privacy policy

A woman writing in a notebook at her kitchen table, with a mug of tea and her phone face down beside her

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. Forever. No paywall, no upsell, no subscription, no ads. 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. 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. Use a backup to move between them.

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.

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.

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 would be misleading.

Is it medical advice?

No. Gliplog is a journal and a calculator, not a medical device.