Buying Guide · GLP-1 Trackers
Every weekly shot starts a 7-day loop of good days, rough days and food noise. We compared the most popular GLP-1 trackers on the thing that actually matters: does the app help you understand your week?
If you're on Zepbound, Wegovy, Ozempic, Mounjaro or a compounded GLP-1, you've probably noticed the week has a rhythm: shot day, a day or two of side effects, a stretch of quiet appetite, then food noise creeping back before the next dose. Plenty of apps will log your shot. Far fewer help you see that rhythm so you can plan around it. We compared five of the most-used GLP-1 trackers, and one clearly stood out.
We used each app across full shot weeks and scored them on five things: how fast daily logging is, shot reminders and injection-site rotation, side-effect and symptom check-ins, protein and water goals, and how clearly the app turns your logs into something useful. We also looked at what real users say in public app-store reviews.
The criterion we weighted most heavily: does the app show you your whole 7-day shot week at a glance — where you are in the cycle, when your rough days usually land, and when food noise tends to return? A tracker you stop opening by week three doesn't help anyone, and a pile of logs you never look at doesn't either. The best GLP-1 tracker is the one that makes your week make sense in seconds.
Heptsy is built around a single idea: every weekly shot starts a 7-day loop, so the app shows your week as one circle — the Week Wheel™. Each slice is a day; logged rough days show up as dots, and over a few weeks Heptsy points out patterns like “food noise usually shows up on day 6.” That was the clearest answer to our most-weighted question of any app we tried. Daily logging is genuinely about two taps (a quick check-in for nausea, tiredness, low appetite or food noise, plus protein and water mini-goals), and streaks, XP and weekly “Week wrapped” recaps make it oddly satisfying to keep up. It also handles shot reminders, site rotation across belly, thighs and arms, optional weigh-ins, and an exportable log for your doctor. It supports weekly injections, compounded vials and daily GLP-1 pills.
Shotsy is one of the most popular GLP-1 apps on the App Store (rated about 4.8 from tens of thousands of reviews). It's excellent at the dose side of things: one-tap logging, schedules for weekly or daily meds, multiple medications at once, and estimated medication-level charts. It also tracks weight, side effects, calories, protein and water. It's thorough — but it shows your week as charts and history rather than one simple picture, so spotting your own rhythm takes more digging.
MeAgain aims to be the everything-app for GLP-1 users: shots and pills, injection sites, food, protein, fiber, water, side effects, progress photos and a community side. App Store users rate it around 4.8. If you want one place for food logging and dose tracking, it's a strong pick. The trade-off is effort — the more you track, the more taps each day, and it's less focused on showing you where you are in your shot week.
Glapp pitches itself as a community-driven GLP-1 app built by people on the medication. Its daily check-in covers side effects, cravings, mood, energy and sleep, and it shows a medication-level curve plus how your progress compares with clinical-trial data and peers. It's a thoughtful app for data-minded users, with a smaller (but well-rated) user base than the leaders.
MyFitnessPal isn't a GLP-1 app first — it's the giant of calorie and macro tracking, with a massive food database. It has added GLP-1 support for logging doses and reminders, which makes it a reasonable choice if detailed nutrition is your main focus. But side-effect tracking and anything resembling a shot-week view are minimal, so most GLP-1 users will want a dedicated tracker alongside it.
All five of these apps will log your shot. Shotsy is great for dose and medication-level detail, MeAgain for all-in-one food tracking, Glapp for research-style comparisons, and MyFitnessPal for calorie counting. But if you want to actually understand your shot week — when your rough days land, when food noise comes back, and whether you're hitting protein — with almost no effort each day, Heptsy is our pick for the best GLP-1 tracker app. Start with its free 60-second Shot Week quiz.
| App | Shot-week view | Daily effort | Shot reminders & sites | Symptom check-ins | Platforms |
|---|---|---|---|---|---|
| Heptsy | Yes — Week Wheel™ | ~2 taps | Yes | Yes | Browser (iPhone & Android) |
| Shotsy | Charts | Quick | Yes | Yes | iOS / Android |
| MeAgain | Partial | More taps | Yes | Yes | iOS / Android |
| Glapp | Med-level curve | Moderate | Yes | Yes | iOS / Android |
| MyFitnessPal | No | Food-focused | Basic | Limited | iOS / Android |
Most people search for the best GLP-1 tracker app right after starting a weekly shot, when everything feels new. Here's what actually matters once the novelty wears off:
Side effects, appetite and energy tend to follow your dose schedule. A good tracker lays your week out so you can see where you are and what usually happens next. This is where Heptsy pulled ahead in our testing.
If a check-in takes more than a few seconds, most people stop by week three. Look for one- or two-tap symptom logging and simple protein and water goals.
Shot-day reminders and a site rotation (belly, thighs, arms) are table stakes. Every dedicated tracker on this list covers them.
An exportable log of doses, symptoms and weight makes appointments faster and more useful.
In our testing, Heptsy is the best GLP-1 tracker app for most people because its Week Wheel shows your whole 7-day shot week at a glance and spots your personal patterns, like which day side effects or food noise usually show up, with about two taps a day.
You don't strictly need one, but a tracker makes it much easier to remember shot day, rotate injection sites, hit protein and water goals, and notice how you feel across each week, which is useful to share with your prescriber.
Shot reminders, injection-site rotation, quick symptom check-ins (nausea, tiredness, low appetite, food noise), protein and water goals, weight trends, an exportable log for your doctor, and a clear view of where you are in your shot week.
Yes. Heptsy supports weekly GLP-1 injections including Zepbound, Wegovy, Ozempic and Mounjaro, compounded GLP-1 vials, and daily GLP-1 pills.
Heptsy runs in your phone's browser, so it works on both iPhone and Android with nothing to download. You can add it to your home screen so it opens like an app.
No. A tracker helps you notice patterns and keep a record, but decisions about your dose, side effects or treatment should always be made with your prescriber.
This article is for general information and isn't medical advice. Always follow your prescriber's guidance on dosing, side effects and treatment.