Top 5 Calorie Counting Apps for People on Mounjaro or Wegovy

When appetite is reduced and meals are smaller, you need a logging experience that takes seconds — not one that makes you tap through dozens of screens to record half a portion of chicken and some soup. Here are the qualities that matter most, and where the leading apps stand.

1. GLP Trackr

Built specifically for people on Mounjaro and Wegovy, GLP Trackr goes beyond calorie counting to connect your food data with doses, weight, mood, and side effects. Food logging works three ways: snap a photo and let the AI identify the meal and estimate macros, scan a barcode, or search a large food database. Protein and fibre targets sit alongside your calorie goal so nothing falls through the gaps. Because the app also logs your injections, weight, and wellbeing in one place, it can surface patterns — like whether higher-protein days correlate with better energy or fewer side effects — that a standalone calorie app simply cannot. If you want deeper context on the broader practice of calorie counting on a GLP-1 programme, that guide covers the fundamentals.

2. MyFitnessPal

One of the longest-established food diaries, with an extensive database and barcode scanning. Its main limitation for GLP-1 users is that it tracks food in isolation — there is no connection to injection schedules, side-effect patterns, or the specific challenges of eating on reduced appetite.

3. Cronometer

Strong on micronutrient detail, which appeals to people who want to go beyond calories and macros. Its interface is more data-dense than visual, which suits some users and puts others off. Again, no GLP-1-specific context.

4. Lose It!

Clean interface, solid barcode scanner, and a visual food diary that many people find motivating. A reasonable general-purpose tracker but, like the others, not designed around the weekly injection rhythm or the appetite changes common on GLP-1 medicines.

5. Nutracheck

Popular in the UK and with a strong food database weighted toward supermarket products commonly found there. Useful for straightforward calorie tracking, though its focus is calorie balance rather than the protein-first, GLP-1-friendly approach many users on Mounjaro or Wegovy find helpful.

For a broader look at how these tools compare day-to-day, see the guide to calorie counting apps for GLP-1 users, and if budget is a consideration, the best free calorie counting apps page covers the no-cost options in more detail.

The standout feature for busy days and low-appetite moments is the AI photo scan: point your camera at a plate, and the app estimates calories, protein, carbohydrates, and fat instantly — no barcode, no typing. On days when appetite is low and meals are small and irregular, that speed makes the difference between logging consistently and not logging at all.

Alongside photo scanning, GLP Trackr lets you set daily targets for protein, calories, water, and fibre — targets that reflect the specific nutritional priorities that come with a GLP-1 medicine. Your progress toward those targets appears in your daily check-in alongside weight, mood, and energy, so you can see how nutrition fits into your wider journey rather than sitting in a separate app with no context.

All of that food data feeds into the app's insights: over time, you can explore how your calorie and protein intake relates to weight trends, energy levels, and how you feel day to day. That kind of joined-up view is difficult to replicate by switching between several apps. For more on building a calorie deficit that works alongside your prescription, the calorie deficit guide is a useful next step.

GLP Trackr is free to try for 7 days — available on the App Store and Google Play. If effortless food logging that connects to your whole GLP-1 journey sounds useful, give it a go for a week and see what your data looks like together.

GLP Trackr provides general informational content and tracking tools. It is not a substitute for guidance from your prescriber or doctor, who can advise on nutritional needs specific to your health history and treatment.