There are a few genuinely good GLP-1 apps now, and they’re built for different people. Every one of them will log the shot; what separates them is the six days after it, and you won’t work that out from a feature list. This page is the criteria. The ranked comparison, ours included, is where the verdicts live.
Quick disclosure: we make Regimen. We’ve said plainly below where we don’t win.
What does a GLP-1 tracker actually track?
A GLP-1 tracker is a phone app for people on Ozempic, Wegovy, Mounjaro or Zepbound that records your weekly shot and everything that happens in the six days after it.
At minimum that means the dose and the date, a reminder before the next one, and your weight over time. What separates the useful ones is what else lands on that timeline: side effects and appetite day by day, dose step-ups marked on your charts so you can see what changed when you moved up, injection sites so you’re not using the same spot every week, progress photos for the change the scale doesn’t show, and an estimate of how much medication is still in you between shots.
Every app will log a shot. The question is whether it can tell you anything about the six days afterwards.
Where the comparison lives
The ranked, side-by-side comparison of every app, what each does, what each costs, and who each is actually for, is in our full guide to the best GLP-1 tracker apps. That’s the place to go for verdicts.
This page is the other half: what to weigh before you look at any list, so the comparison means something when you get there.
What actually separates GLP-1 trackers
Assume the basics. Every decent app logs the shot, reminds you before the next one, charts your weight, tracks injection sites and holds your progress photos, so an app that leads with those is telling you what it doesn’t have. Six things actually separate the one you keep from the one you delete in month two.
Schedule flexibility. Weekly on the same day is what the box says, and plenty of people end up somewhere else: a set day that fits your week, two half shots a few days apart, stretching to ten days on maintenance, or sitting at one dose a lot longer than the label steps suggest. An app that only understands “weekly” reminds you on the wrong day, and you start logging things that aren’t quite true. Set up your real schedule during the trial before you look at anything else. If the closest you can get is something that isn’t quite right, you have your answer in five minutes.
Daily tracking depth. Any app lets you tick nausea. Far fewer let you say it was bad on day two and mostly gone by day five, which is the only version that helps when you’re working out whether the higher dose is doing it. Open the check-in screen and count what’s actually on it, and whether you can say how bad rather than just whether. Weight, photos and injection sites are on everyone’s screen; what varies is how much of a rough week you can actually get down.
Pattern detection. Depth is what you put in. This is whether anything comes back out. Four months in you’ll have hundreds of entries and still not know whether moving up a dose is why that week was rough, and scrolling your own history on a Thursday night is not a plan. Go find a sentence an app wrote about somebody’s actual data, in its screenshots or its reviews. “AI-powered insights” on a feature list is not that. If every example it shows you is a chart, what you have is a very nice notebook.
Food and protein logging. This one is a fork, not a quality bar. Some apps build in food, protein and water logging and are genuinely good at it; others leave it out, partly because a lot of people came to a GLP-1 to stop counting things. Regimen doesn’t do food logging, so if protein tracking is your number one, keep the food app you already use and let the tracker handle the medication side, or check the ranked comparison for the apps that build it in. Look at what an app asks you for on day one: a setup flow that wants a calorie target tells you its shape immediately.
Free tier scope. Nearly every GLP-1 app is free to install, so the real question is what’s still free in month three. The one that catches people is the medication-level chart, the picture of how much is still in you between shots, which makes a rough day two and a starving day six stop feeling random. Plenty of apps include it and some keep it for subscribers, and you usually find out which after you’ve logged two months. Tap it in the free version before you commit, then sort the App Store reviews by most recent and search for the word paywall.
Bringing your history over. Hardly anyone picks their first GLP-1 app on purpose, and a lot of us are on our second or third. Four months of shot dates and weights is worth keeping, and starting over means your weight chart opens in the middle of the story. Search an app’s site or help pages for the word import before you install, not after. It’s a two-minute check that saves you retyping a season of your own history.
One more, which isn’t a feature: open the App Store privacy label and read it yourself before you trust any app with this, ours included.
Which of these matters most right now
| Where you are | What to check first |
|---|---|
| Just started, and the week still feels random | Daily tracking depth. The first month starts making sense once the nausea and the food noise have a level and a date on them. |
| Your dosing is anything other than the same amount on the same day | Schedule flexibility, and check it in the first five minutes. If the app can’t hold your real week, nothing else about it matters. |
| Moving up a dose in the next few weeks | Pattern detection. The only thing you’ll want to know is what the step-up actually did, and you want the app answering that, not you. |
| Months in and the scale has stopped | Pattern detection again. You already have the data. You need something that reads it. |
| Already paying a few hundred a month for the medication | Free tier scope. Find out what sits behind the subscription before you’re two months in. |
| Switching from an app you’ve already logged months into | Bringing your history over. Sort that out before you log a single shot. |
| Protein and water are what you most need help with | Food and protein logging decides this one for you before anything else on the list does. |
Take whichever row you just recognised yourself in to the ranked comparison, where every app is judged on the same six.
Why Regimen is the most complete GLP-1 tracker
Set your week up the way you actually dose it: a specific day, two shots a few days apart, every ten days, or holding at a dose for as long as you need. Then log what the week actually did to you. Regimen gives you 50+ daily check-in markers, and the ones that matter here are food noise, nausea, constipation, bloating, heartburn, energy, mood, sleep and appetite, each with a level on it rather than a checkbox. All of it sits on the same timeline as your shots, with every dose change marked. Weight, progress photos and injection sites are there too, and if you get labs, your bloodwork plots on that same timeline.
Then the part most apps skip. Regimen’s Signals watches your check-ins, your doses, your medication levels and your weight, and tells you the pattern it finds against what actually changed: your nausea has eased three weeks running since you moved up, or hunger is back by day five. It’s pattern detection, not a chatbot, and it measures you against your own baselines instead of an average. It’s free. So is the medication-level curve. Everything is free for your first medication.
Coming from another app, Regimen imports your history from Shotsy, so your first chart opens with your real starting weight on it.
One thing Regimen doesn’t do is food, calorie or protein logging. If that’s your number one, pair it with the food app you already open every day, or check the ranked comparison for the apps that build it in.
Everything else is in one place: your shots, your medication levels, 50+ daily markers and your bloodwork on a single timeline, with the pattern read back to you instead of left for you to find.
The honest bottom line
A GLP-1 tracker is worth keeping if it can hold the way you actually dose, lets you log how bad a day was instead of just that you had one, tells you what it noticed without you asking, and still shows your medication-level chart if you never pay. Food logging is a fork rather than a quality bar: some apps build it in, some deliberately leave it out. And if you’re coming from another app, check whether it can import your history before you log a single shot. Reminders, weight charts, progress photos and injection-site rotation are standard now, so they don’t separate anything.
Want the full rundown of every app? See the best GLP-1 tracker apps of 2026 guide.
Ready to track your GLP-1?
- Your schedule: specific days, split doses, every X days
- 50+ daily markers, each with a level, on one timeline
- Tells you what changed after a dose change
Frequently asked questions
What's the most important thing in a GLP-1 tracker?
Whether anything comes back out of it. Logging a shot is easy and every app does it. Four months in, the question you actually have is whether the dose you moved up to is why last week was rough, and only an app that reads your own entries back to you can answer that. Reminders, weight charts and progress photos are standard now.
Which app is best for food and protein tracking?
Not Regimen, and we'll say so plainly: it doesn't do food logging. Some GLP-1 apps build it in and are good at it. If protein is your number one, keep the food app you already use and let the tracker handle the medication side, or check the ranked comparison for the apps that include it.
Which app shows my medication levels for free?
Regimen includes the medication-level chart on its free tier, and it isn't the only one that does. What varies is what happens after you've logged two months, so tap the chart in the free version before you commit and sort the App Store reviews by most recent to see what moved behind a subscription.
Which app helps me see patterns in how I feel?
Regimen is strongest here. Its Signals feature reads your check-ins, doses and medication levels against what actually changed in your dosing, and tells you what it found: your nausea has eased three weeks running since you moved up, or hunger is back by day five. It's pattern detection, not a chatbot.
Do I even need an app, or is my notes app fine?
Notes work for a while. Once you're a few weeks in and trying to see your weekly rhythm and weight trend together, an app that connects it for you saves the headache. This article is for informational purposes only and does not constitute medical advice. Discuss all treatment decisions with your healthcare provider.
