Free Fitness Apps for Android: What to Look for When You're on Mounjaro or Wegovy

Most calorie apps for Android were designed around standard hunger levels and three-meal-a-day eating patterns. When appetite is significantly reduced — as many people on Mounjaro or Wegovy experience — logging a 300-calorie lunch and hitting a protein target matters far more than chasing a generic daily calorie ceiling. A good weight loss app for Android in this context should make food logging as frictionless as possible, since even opening an app to type in a meal can feel like too much effort on low-appetite days.

Food logging that works with reduced appetite

Look for apps that offer barcode scanning and, ideally, photo-based food recognition — these remove the friction of searching and typing when you're eating small, irregular amounts. Tracking protein separately from overall calories is especially useful, since many people on GLP-1 medicines are advised by their prescriber to prioritise protein to support muscle maintenance during weight loss.

Progress beyond the scales

Weight on a GLP-1 journey is rarely linear. Useful free weight loss apps for Android should let you log measurements, energy levels, and mood alongside the number on the scale — because a week where the scale barely moves may still show meaningful changes elsewhere. Apps that visualise trends over weeks rather than days tend to give a more honest picture of progress.

Dose and injection tracking

This is the gap most generic fitness apps leave entirely. A weekly injectable medicine has a schedule, a rotation of injection sites, and a dose that changes over time under your prescriber's guidance. Tracking all of that in the same app as your food and weight data means nothing gets siloed. For a broader look at tools built specifically for this purpose, the guide to apps designed for GLP-1 users is worth reading alongside this page. You might also find the roundup of the best apps for fitness tracking useful for comparing general-purpose options with GLP-1-specific tools.

Community and consistency

Staying consistent with a weekly injection schedule, protein goals, and a reduced-calorie diet is easier when there's a support layer built in. Some of the best free weight loss apps for Android include community features where users share experiences — particularly valuable when navigating side effects or a weight plateau that a generic fitness app has no framework to explain. If you use an iPhone as well as an Android device, the equivalent guide to free fitness apps for iPhone covers the iOS side of the same question.

GLP Trackr is a free-to-try companion app for people already prescribed Mounjaro or Wegovy, available on Google Play as well as the App Store. The feature that tends to make the biggest practical difference for Android users is the AI photo food scan — point your camera at a meal and the app estimates calories, protein, and macros instantly, which suits the low-effort logging that low-appetite days demand.

Beyond food, the app brings together the parts of a GLP-1 journey that most calorie apps for Android ignore entirely: injection-site logging with automatic rotation suggestions, dose reminders so a weekly shot is never forgotten, and a daily check-in that captures mood, energy, sleep, and food noise alongside weight. Insights then surface patterns across all of that data — useful material to bring to a prescriber appointment.

For a wider view of how the app fits the Mounjaro journey specifically, the Mounjaro tracking hub covers the full picture.

A note on health decisions: GLP Trackr is a tracking and journaling tool — it does not provide medical advice, and nothing in the app replaces guidance from your prescriber or doctor. Any questions about your dose, your progress, or symptoms you're experiencing should go to your own healthcare professional.

Ready to bring your food, weight, and dose tracking together on Android? Download GLP Trackr on Google Play (also on the App Store) and start a free 7-day trial — no commitment needed.