Best GLP-1 Tracker App in 2026:Free & Paid Apps for Ozempic, Wegovy, Mounjaro & Zepbound

Yes. The shot takes ten seconds; the six days after it are where the side effects, the appetite changes and the results happen. A good tracker follows the titration plan your doctor set, shows you where you are as the medication builds, records how your body is responding in enough detail to fit you, and turns all of it into something you can show your doctor. That's the difference between hoping it's working and knowing.

Regimen, for most people. Any GLP-1 app will log the shot and remind you about the next one. What separates them is whether the app follows the plan you were given and shows you what the medication is doing: a titration schedule that steps you up on its own, side effects logged in enough detail to tell a settling week from a dose you can't stay on, your medication level between shots, and your labs on the same timeline. Regimen does all of that, on iPhone and Android. Shotsy has been around the longest and has food logging. Glapp compares your progress with clinical trial results.

Regimen. Free for one medication, no time limit; Premium if you track more than one. The free tier covers most of the app: the medication-level chart, side effects and 50+ daily markers, bloodwork, weight and health metrics, injection site rotation and pattern detection.

Yes. Regimen is a free GLP1 app for one medication, a GLP1 tracking app with weekly shot reminders, injection-site rotation, weight and progress photos, detailed side-effect logging, lab work and the estimated medication-level curve. Free for one medication, no time limit; Premium if you track more than one. Glapp and Pep have free tiers that include a medication-level view; Shotsy and GlucoPal keep theirs on the paid tier. MeAgain has a free tier with a subscription for the rest, and MyNetDiary's GLP-1 tools are on Premium.

It is real. Regimen is free for one medication with no timer and no credit card, so if you are on a single GLP-1 you can use it free indefinitely. Premium is only for tracking more than one compound at once, and it has its own 14-day trial; the free tier never expires.

Regimen, if you want your shots, side effects, weight and bloodwork in one app with the medication-level curve included free. Shotsy and MeAgain are both solid on iPhone too. All three are free to start.

All seven apps on this list are on both iPhone and Android: Regimen, Shotsy, Glapp, MeAgain, Pep, MyNetDiary and GlucoPal. Regimen, Glapp and MyNetDiary run on the web as well.

Regimen is the better pick if you want the medication-level curve free and your bloodwork next to your doses. Shotsy has been around longer and has built-in food logging. Both are on iPhone and Android.

Regimen, if you want the medication-level chart free and your side effects and bloodwork read against every step up the Mounjaro or Zepbound ladder. Shotsy also tracks tirzepatide and adds food logging.

Yes. Regimen tracks Mounjaro free, including all six titration doses, with a reminder before each weekly shot and a log of which injection site you used. Zepbound and compounded tirzepatide work the same way.

Regimen. It does the weight-loss basics every tracker does, weight, body fat and progress photos, and then does the part most of them skip: it holds your titration schedule and steps you up on plan, logs the side effects that decide whether you can stay on a dose, and shows your medication level between shots so a slow week has an explanation instead of a guess. Free for one medication, on iPhone and Android. Shotsy has been around longer and adds food logging.

Two kinds of app answer this. Food-first apps add a medication log to meal tracking: Shotsy, MeAgain and Pep log your GLP-1 next to food, and MyNetDiary adds medication tracking to its calorie counter on Premium. Medication-first apps start from the dose: Regimen holds your titration plan, logs shots or daily pills and lines your weight up against each dose step, but has no food logging. Pick the one you'll open daily. Regimen is free for one compound, no time limit; all of them are on iPhone and Android.

Between appointments. Regimen turns your doses, side effects and weight into a report you can share with your provider, so 'stay or step up' starts from your own numbers. Shotsy, MeAgain and Glapp also offer reminders and side-effect logging. None of them tells you what dose to take.

Regimen, if you manage more than the shot: supply tracking for pens and vials (doses left, beyond-use dates), reconstitution math if you draw from a vial, and one-tap logging with reminders. Site rotation works as described under injection sites below.

Regimen tracks your GLP-1 therapy progress on one timeline: every dose and step-up is marked, your weight trend plots against published clinical-trial averages, side effects and 50+ daily markers show week by week, and bloodwork sits next to the doses you were on. Progress photos line up side by side so you can see the change the scale misses. Whatever you use, weigh in at the same time each week and note the dose you were on, so a plateau can be matched to a step.

Regimen. The estimated medication-level curve, the chart that shows how much semaglutide or tirzepatide is in your system between weekly shots, is included free; Glapp’s and Pep’s free tiers show a medication-level view as well. Shotsy and GlucoPal keep theirs on the paid tier; Shotsy+ starts at $9.99/mo or $39.99/yr.

Regimen is the only app on this list that supports both. If you're taking MOTS-c alongside semaglutide, or KLOW while on tirzepatide, Regimen tracks all of it on one timeline with a library of 200+ compounds and brands.

Regimen. It suggests the next site, lets you add your own spots, and rests a sore spot until it heals. For GLP-1 medications you're typically alternating between abdomen, thigh, and upper arm. Shotsy, Glapp, MeAgain, Pep, MyNetDiary and GlucoPal also log where you injected.

In Regimen, enter the plan your prescriber set (for example 2.5 mg for four weeks, then 5 mg) and every dose lands on the right day with a reminder that says how much to take. There is also a free titration planner on the Regimen website. If you're using a different app, log each dose change with the date so you can look back and see how side effects lined up with each step up.

Yes. Regimen lets you set the exact days for each shot, split a weekly dose into two injections about 3.5 days apart, and log smaller, more frequent doses at any amount if you microdose. Schedules are set per compound, so the app follows the plan you and your prescriber chose instead of a once-a-week template. Dosing on specific days is the reason one Shotsy user switched to Regimen.

Yes. Most of these trackers, Regimen included, let you log a daily pill instead of a weekly shot, so dose schedule, side effects, and weight tracking still work (injection-site tracking just won't apply). Most people on a GLP-1 are on a weekly injection, which is what these apps are built around, but a daily pill logs fine.

Regimen has a built-in reconstitution calculator (also free on the web) if you're mixing compounded semaglutide from a vial. Most mainstream trackers don't, since they assume a pre-filled pen. On a standard Ozempic, Wegovy, Mounjaro, or Zepbound pen, you can ignore this.

Yes. Regimen logs the common ones, nausea, constipation, fatigue, appetite changes, and the ones most apps skip, like sulfur burps and water retention, and maps them against your dose so you can see whether the side effect got worse at your last titration step.

Shotsy has the longest track record and medication-level charts on its paid tier. MeAgain is food-first, five ways to log meals with side effects on the same timeline. Glapp runs on iOS, Android, and the web, useful if you want a big-screen view. All three are GLP-1-only. Regimen's edge against all three is the free medication-level curve and bloodwork logged next to your doses.

Several Reddit users who tried Shotsy and other apps say they settled on Regimen; their comments are quoted on this page. The GLP-1 subreddits debate this often, and those threads are the best place to hear how an app holds up week to week.

No, and they shouldn't. These are tracking and calculation tools, not medical advice platforms. Dosing decisions should come from your prescriber.

We review the GLP-1 trackers that publish enough on their own App Store and Google Play listings to check, re-checked every month (last on October 26, 2026). Two apps we used to list are out: DoseDiary, a web app, and GLP1 Tracker, a tirzepatide log. General medication reminders are out too.