The best GLP-1 tracker apps, compared

Most comparisons in this category start with a feature checklist. That's the wrong starting point, because it treats every app as equally durable, and the evidence gathered for this piece says several of them aren't. Start instead with who the record belongs to. A tracker built by, or bundled into, a medication provider ties your history to that relationship. Change prescriber, change country, or have that company change strategy, and your data's fate changes with it. A provider-neutral tracker keeps the record yours regardless of who's writing the prescription.

Next, ask what happens to a feature you rely on once you've committed to the app. Reviewers across this category describe logging in one day to find something that was free is now behind a paywall, with no warning and no grandfathering for existing users. It has happened more than once in this set, and it is the single most common source of one-star reviews across the apps compared here.

Then there's portability: can you get your history out, in a form you could hand to a new provider or a new app, and does that still work after you cancel. Every app in this comparison has some gap here, and none has a fully solved, verified answer. This is a category-wide weak spot, not a single app's failing.

Finally, look at when the price is shown. Several of these apps ask you to complete a full medical questionnaire before revealing what a subscription costs. That ordering is itself a signal worth weighing before you hand over any health information.

This is worth understanding before you commit to any app in the category, because it has already happened twice in this comparison, in two different ways.

Shotsy reviewers across all four storefronts have repeatedly reported features that were previously free moving behind the subscription: the estimated medication-level chart is the one named most often. It is the largest single source of anger in Shotsy's reviews, and reviewers describe it as an ongoing pattern with each update rather than a one-off change.

Glapp launched free with no in-app purchases and introduced paid tiers a few months later. Reviewers, including beta testers who had contributed feedback while the app was free, report that most previously-free functionality moved behind the new tier without any grandfathering for existing users. Some say they were told by email beforehand that free features would stay free.

Several of these apps run more than one price point at once, which the table above reflects rather than smooths over. One app's official pricing could not be independently verified at the time of writing: its in-app purchase list failed to load during research, and reviewers report conflicting figures for the same tier. Treat any single price you see quoted for that app with caution until you check it directly in the App Store before subscribing.

Shotsy is the incumbent in this category and, by review volume, the largest indie GLP-1 tracker on the App Store. Its estimated medication-level curve covers more molecules than any rival's, which is why it remains popular with people trying to correlate side effects with dose timing. It runs on iPhone and separately on Android, with data syncing through Apple's private iCloud on iOS.

It suits someone who wants the deepest dosing model in the category and is prepared to navigate a subscription structure that reviewers say has grown more complicated over time. Reviewers using compounded medication also report having to convert doses between mg, mL and insulin units by hand.

MeAgain is the only other indie tracker operating at Shotsy's scale, and the only app in this set with integrated food logging: photo, barcode and manual entry, plus fibre tracking. It has also begun selling GLP-1 medication directly, which means it is not a provider-neutral tracker in the way most of the others are.

It suits someone who wants dosing and food logging in one place. Reviewers repeatedly report being unable to log anything without subscribing first, having already completed a full onboarding questionnaire. A dashboard redesign that replaced the shot countdown and streak with calorie and macro tracking has drawn sustained, detailed objection from MeAgain's own users, including a disordered-eating concern.

Glapp is the fastest-rising app in this set, built around two features nobody else here offers: vial-level supply tracking ordered by beyond-use date, and benchmarking of a user's weight trajectory against clinical-trial and peer data. It is also the only app in this comparison with a genuine Apple Watch app.

It suits someone managing physical medication supply (vials specifically, not pens) who wants to see how their own progress compares with trial data, and who is comfortable with a relatively young app that has already gone through a contested paywall change (see above). Reviewers report Glapp's support telling them shots cannot be scheduled for specific weekdays, which rules out common twice-weekly regimens.

GlucoPal is the deliberately simple option. It requires no account to use, and has the lowest minimum iOS requirement of any app in this set, which gives it the widest reach on older devices.

It suits someone who wants to log a shot, their weight and their injection site without setting up an account or learning a complicated interface. Reviewers describe its food logging (AI photo-based macro estimation) as inaccurate and time-consuming, with specific complaints about misidentified foods and no option to type a meal name manually.

Pokii is a deliberately thin client. Reviewers repeatedly describe choosing it because they were able to use it without subscribing, though it publishes its own subscription tiers alongside an optional tip jar, and it leans on Apple Health for anything it doesn't track natively, including food.

It suits someone who wants a light tracker and is happy to pair the app with Apple Health, or a dedicated food-logging app, rather than getting everything in one place. Some reviewers report a data-entry mistake being difficult to correct once made, and a few describe a previously-free feature becoming paid, echoing a pattern seen elsewhere in this category.

Pep is an all-in-one tracker covering dosing, weight, food and progress photos in a single app, and it supports a wider range of medications than most rivals, including retatrutide and other non-standard GLP-1 medicines.

It suits someone who wants everything consolidated in one place and is not put off by a subscription model with a short trial. Reviewers report being charged despite cancelling within the stated trial window, a pattern also seen at other apps in this category. Pep reviewers separately report a food-scanner that miscalculates simple quantity multiplication, and describe this as undermining their trust in the app's other calculations.