Free GLP-1 tracker for iPhone

Your GLP-1 tracker, from first dose to Onederland

Log your weekly injection or daily pill in two taps when it's due. See your weight beside every dose change, your estimated medication level and today's protein.

Download on the App Store
QR code that opens Onederland on the App Store

Scan to get Onederland on your iPhone

Free to download and use, with no time limit. Onederland Plus adds AI food logging and 3D body compare.

Progress: Maya's weight trend from June to September with her Wegovy dose steps below

Next dose

Today

7:00 PM

1 mg Wegovy (semaglutide)

Welcome to Onederland · 199.4 lb

A demo profile, Maya, with made-up data.

01

Weight and doses

See your weight beside every dose change

Progress draws a smooth trend through your weigh-ins and puts your dose steps underneath, on the same timeline. You see when each dose started, and the day you crossed the line at 200 pounds.

2taps to log your dose when it's due, with the time filled in
200the Onederland line in pounds, or 100 if you weigh in kilograms
195205210215220200Onederland · 200 lb0.25 mg0.5 mg1 mgCrossed into OnederlandMonday, September 21 · 199.4 lb0.25 mg0.5 mg1 mgJunJulAugSep195205210215220200Onederland · 200 lbCrossed Sep 210.25 mg0.5 mgJunJulAugSep
A demo profile, Maya, with made-up data: weigh-ins as dots, the trend as a line, dose changes as colored points, the dose steps below.How the weight chart works
02

Doses

Log your dose in two taps when it's due

Your next dose waits on Home with its day, time and medicine. Log it, skip it or log it late, and the schedule keeps up. Reminders arrive on your dose days.

  • Weekly injections or a daily pill. Wegovy, Ozempic, Zepbound, Mounjaro, the Wegovy pill, the Ozempic pill, Rybelsus and Foundayo.
  • Reminders at your time. On dose days, with Mark as done right in the notification.
  • A note with every dose. Like where you injected, or how you felt.
GLP-1 dose tracker
Log dose: 1 mg chosen from the dose presets, with the time taken and a note field
Next dose and schedule: today's 1 mg dose due at 7:00 PM, with the weekly doses on a timeline

A demo profile, Maya, with made-up data.

Medication level: an estimate that is ramping up, with the level over time below

A demo profile, Maya, with made-up data.

03

Medication level

An estimate of your medication level, from the doses you log

Onederland estimates how much medicine is in your body from your logged doses and each medicine's published half-life, in whole percent. 100% is your average once you've been on the same dose for a few weeks.

  • Estimated, never measured. It's shown with “Estimated from your logged doses. Not a lab test.”
  • Every dose in view. The chart marks each dose and skip, so a gap is easy to see.
  • Sources you can read. Half-lives come from prescribing information and trial results.
How the estimate works
04

Food and protein

Protein first, and food logging that keeps up

Describe a meal or take a photo, and Onederland estimates its calories and protein. Or scan a barcode, search what you've eaten before or log it by hand. Today's protein is always on Home.

  • Describe it, or snap it. AI estimates with Onederland Plus. Change anything that looks wrong.
  • Scan, search and repeat, free. Barcodes, favorites and recent foods cost nothing.
  • A protein target. Suggested for you, or set your own in Settings.
GLP-1 food and protein tracker
Edit food: Greek yogurt with berries, estimated from a description at 280 kcal and 20 g protein
Food day: 1,080 kcal and 86 g protein so far today

A demo profile, Maya, with made-up data.

05

Everything else

The rest of your week, in one calm place

Onederland score

One number for your week

Weight trend, nutrition, doses, activity and sleep, scored over a rolling week (your weight trend looks back two weeks), with the points for each part.

A demo profile, Maya, with made-up data.

Onederland score: 63 of 100 for the last 7 days

Calendar

Side effects and notes, on the day they happened

Mark nausea, fatigue or anything else with how strong it was. Doses, weigh-ins and notes sit on the same days.

A demo profile, Maya, with made-up data.

Calendar: October, with a scheduled dose, a note and a side effect marked on today

Apple Health

Weight, sleep and activity come in on their own

With your permission, Onederland reads the weight, sleep, activity, food and water data you allow, and writes back the weights, food and water you log.

WeightSleepStepsFoodWaterBlood pressure

Reports

A PDF your care team can read in a minute

Weight and BMI, doses and the estimated medication level, food, sleep and activity, for the range you choose.

Onederland Health Report · Jul 2 – Sep 29

Charts and tables, ready to print or share

Onederland Plus

Your start and today, side by side, in 3D

3D body compare turns two photos of you into models you can turn and line up. Your photos go to a 3D service to make the models; the privacy policy explains what it keeps.

PlusWith AI food logging

Privacy

Your health data lives on your iPhone

No account needed to start. Backups go to your own iCloud Drive or Files. A few features, like the daily insight, send only what they need. We never sell your data.

Read exactly what leaves your phone, and why, in the privacy policy.

17 languages

In your language, in pounds or kilograms

Onederland speaks 17 languages, formats numbers and dates the way your iPhone does, and lets you choose pounds or kilograms.

EnglishالعربيةČeštinaDeutschEspañolFrançaisHrvatskiItaliano日本語한국어NederlandsPolskiPortuguêsSvenskaTürkçe简体中文繁體中文

The name

The day the scale starts with a 1

Onederland is what people call weighing under 200 pounds: the day the scale starts with a 1. The app draws that line on your chart and marks the day you cross it, or the line at 100 kg if you weigh in kilograms. Your own goal gets its moment too, wherever it is.

Every log got you here, one day at a time.

Welcome to Onederland: 199.4 lb, with Keep going and Share

A demo profile, Maya, with made-up data.

  • Calm

    One clear thing first on each screen, quiet colors, no streak shaming and no noise.

  • Kind

    Food is fuel, not a test. Weight moves both ways. A missed dose is logistics, never a failure.

  • Careful with medicine

    We estimate, we say so, and we cite our sources. We never tell you which dose to take.

  • Private

    Your health data is stored on your iPhone by default, and we never sell it.

06

Free and Plus

Free to track, with no time limit

Dose tracking, the medication level estimate, Apple Health and reports cost nothing. Onederland Plus adds AI food logging and 3D body compare.

Free

$0

Everything you need to track a GLP-1, with no time limit.

  • Dose tracking and reminders
  • The medication level estimate
  • Weight with your dose steps
  • Apple Health sync
  • Food by barcode, search and by hand
  • Side effects, notes and the calendar
  • PDF and CSV reports
  • The Onederland score and daily insight

Free, with no time limit

Download on the App StoreSee everything that's free

Onederland Plus

1-week free trial

$39.99a year

Or $5.99 a month. Prices in US dollars; the App Store shows yours.

  • Describe a meal, get the macros
  • Photograph your plate
  • 3D body compare

Everything in Free, plus AI food logging and 3D body compare.

Compare plans
07

Questions

Good questions, plain answers

All questions
Which medicines does Onederland work with?

Semaglutide injections (Wegovy and Ozempic), oral semaglutide (the Wegovy pill, the Ozempic pill and Rybelsus), orforglipron (Foundayo) and tirzepatide (Zepbound and Mounjaro). You set your dose and how often you take it, and Onederland keeps the schedule.

Is Onederland free?

Yes. Doses, reminders, the medication level estimate, weight, Apple Health, food by barcode or search, side effects, reports and the Onederland score are free. Onederland Plus adds AI food logging and 3D body compare.

Does Onederland give medical advice?

No. It's a tracking app, not a medical device, and it never tells you which dose to take. Talk to your prescriber before changing your dose.

Where is my data stored?

On your iPhone. Backups go to your own iCloud Drive or the Files app. A few features use our servers, such as the daily insight, AI food logging and 3D body compare; the privacy policy explains each one.

Does it work with Apple Health?

Yes. With your permission it reads weight, height and body composition, blood pressure and glucose, steps, distance, active energy and exercise minutes, sleep, food and water, and your sex and date of birth. It writes back the weight, blood pressure, food and water you log. On iOS and iPadOS 26.5, it neither reads nor writes blood pressure.

What is Onederland, the milestone?

Weighing under 200 pounds, or under 100 kilograms if you weigh in kilograms. Onederland draws that line on your chart and marks the day you go under it.

Start with your next dose

Free on the App Store for iPhone and iPad. Onederland Plus is optional.

Download on the App Store
QR code that opens Onederland on the App Store

Scan to get Onederland on your iPhone