7 Best Weight Loss Apps for Android

Weight-loss apps are a category that has changed substantially in the last five years — partly because of better food databases and barcode scanning, partly because of the rise of GLP-1 medications that have shifted what "weight-loss support" means for a growing segment of users, and partly because the apps that survived the pandemic-era boom are now meaningfully more polished than the ones that didn't. The seven below are the most useful Android options as of mid-2026, chosen for actual day-to-day usefulness rather than marketing reach.

One thing worth establishing at the outset. No app loses weight for you. Research on weight-loss tracking consistently shows that apps help in a structural way: they make patterns visible that are otherwise invisible, they impose light accountability that actually changes behaviour, and they let you identify the specific failure modes in your eating or movement pattern. A 2021 study in Current Biology (Speakman, Pontzer, et al., 1,754 adults measured by doubly labelled water) found that when people start exercising, about 28% of the extra calories burned are compensated for by the body — mostly through unconsciously moving less the rest of the day, not through a slower metabolism. Tracking apps are one of the few tools that make this invisible compensation visible: if you log workouts but your daily step count is still low, you can see the offset that is undermining your deficit.

The best app is the one you will actually open most days for several months. A clever feature set you abandon after three weeks is worth less than a simpler app you maintain consistently. The list covers different jobs: full-featured calorie tracking, photo-based logging, fasting timers, behaviour-change coaching, fitness-integrated tracking, and lighter habit-formation tools. Some adults will use one; some will combine a tracker with a fasting timer or a workout app. The right combination depends on what has been failing — if you have been tracking diligently and not losing, an accountability or coaching layer matters more than a better food database.

1. MyFitnessPal

MyFitnessPal remains the most-used calorie tracker on Android, and the food database — built over 15+ years of user contributions — is still the most comprehensive available, including a reasonable selection of Indian, Chinese, Mexican, and other non-Western foods that competing apps thin out on. Barcode scanning is fast and reliable. Restaurant chain menus are usually accurate. Macro tracking, recipe building, and meal-template saving are all available in the free tier.

The downside: aggressive premium upsells in recent years and an ad-heavy free experience. The premium tier is genuinely useful — deeper macro analysis, custom goals, no ads — but the price has crept up. For most users, the free tier handles the actual job — daily calorie logging — adequately. The 2024 ownership change to Francisco Partners has slowed the pace of feature changes, which is fine if the app already worked well for you.

Best for: Serious calorie tracking, large food-database needs, anyone who has tried other apps and bounced because the database was incomplete. If your tracking gaps are database-related, this is the fix.

2. Cronometer

Cronometer is the calorie tracker for people who care about micronutrient detail beyond macros. Where MyFitnessPal tracks calories, protein, carbs, and fat by default, Cronometer tracks 80+ nutrients including specific amino acids, vitamins, minerals, and key trace nutrients. The food database is smaller than MFP's but entries are vetted to a higher standard — each food is sourced from a reference database, not crowdsourced — which matters when precise tracking of nutrients such as potassium, B12, or iron is the actual goal.

The interface is denser than MFP's: more accurate, more detail, slightly higher learning curve. Particularly useful for adults with specific medical or nutritional concerns — anaemia, vitamin D deficiency, kidney conditions where potassium tracking matters, or ketogenic dieting where exact macro percentages affect outcomes. Cronometer is also the most useful logging tool for adults on GLP-1 medications, where reduced food intake can underdeliver on protein and micronutrients; discuss what specific nutrients to monitor with your doctor or dietitian.

Best for: Micronutrient-focused tracking, plant-based eaters wanting to verify B12 and iron, anyone whose tracking needs are more clinical than casual.

3. Lose It!

Lose It! is the cleaner-design alternative to MyFitnessPal. The interface is faster to navigate, the goal-setting flow is friendlier for beginners, and the photo-based food logging (Snap It feature) has improved meaningfully over the past two years — you can now photograph many common meals and get a reasonable calorie estimate without manual logging. The food database is large enough for most common foods, though it thins out on regional and ethnic cuisines compared to MFP.

Premium adds meal planning, more detailed macro analysis, and challenge programmes that some users find genuinely useful for accountability. The free tier handles basic tracking adequately for most purposes.

Best for: Beginners to tracking who find MyFitnessPal cluttered, users who prefer a calmer interface, and anyone interested in photo-based food logging as a lower-friction alternative to manual entry.

4. Noom

Noom is a behaviour-change programme dressed up as a weight-loss tracker. The actual calorie tracking is functional but not best-in-class; what Noom does differently is daily lessons, psychology-focused content, and a colour-coded food categorisation (green / yellow / red foods by calorie density) that quietly trains better intuitive choices without strict counting. The coaching layer — human coaches in earlier versions, increasingly AI in 2026 — is the differentiator.

The product has had turbulent years on pricing and user reviews; the underlying programme has solid behaviour-change research behind it, but is meaningfully more expensive than MFP or Lose It! Premium. Worth trying the free trial specifically if you have been tracking calories diligently for months without behaviour actually shifting — that specific failure mode (knowledge without habit change) is what Noom addresses. If the issue is simply an incomplete food database, a simpler tracker is the right fix.

Best for: Adults whose tracking knowledge is fine but whose habits have not shifted, people who respond well to daily psychology content, and users who want more structure than a pure tracker provides.

5. Zero (intermittent fasting tracker)

If your eating pattern is built around intermittent fasting — 16:8, OMAD, or longer protocols — Zero is the most established and best-designed fasting tracker on Android. The interface is simple: set your fasting window, the timer tracks it, and the app surfaces sleep, mood, and weight data alongside fasting history. Recent versions integrate with Apple Health and Google Fit reasonably well.

The premium tier adds content, longer-fast guidance, and biomarker tracking. For most users the free tier is sufficient — the core job (an honest fasting timer with progress tracking) is well-handled at no cost. Pair with one of the calorie trackers above if you need both food logging and fasting structure simultaneously.

Best for: Committed intermittent fasters, anyone using a time-restricted eating window who wants visibility into adherence, and users who find calorie-by-calorie tracking exhausting and prefer a structural eating pattern instead.

6. Google Fit (plus a smartwatch)

Google Fit is not a weight-loss app per se, but as the activity-tracking backbone — particularly when paired with a Wear OS watch or any compatible fitness band — it is the most reliable Android-native way to track steps, heart rate, sleep, and overall movement. Most other apps on this list integrate with Google Fit, so it acts as the data layer powering tracking elsewhere.

For weight loss specifically, the most useful Fit metrics are daily step count and active minutes — both strong proxies for non-exercise activity thermogenesis (NEAT), which a 2018 Journal of Exercise Nutrition & Biochemistry review found can vary by up to 2,000 kcal per day between similar-sized adults. One nuance worth registering: the commonly cited 10,000-step target was not derived from research but originated as a 1960s Japanese pedometer marketing slogan. A 2025 dose-response meta-analysis of 57 studies covering more than 160,000 adults, published in The Lancet Public Health (Ding et al.), found that most protective health benefit accrues by around 7,000 steps per day, with the all-cause mortality hazard ratio at 7,000 versus 2,000 steps of 0.53. If you are tracking steps as part of a weight-loss plan, 7,000 is the evidence-based floor — 10,000 is a worthwhile stretch goal, not a threshold you are failing to meet.

The 2024–2026 redesign improved heart-rate-zone insights and the sleep summary meaningfully.

Best for: Activity tracking as part of a broader weight-loss approach, Android users with a Wear OS or compatible fitness band, anyone wanting step and movement data to feed into other apps.

7. Yazio

Yazio is the European-focused alternative to MyFitnessPal — better food database for European packaged foods, cleaner interface, and a meal-plan layer stronger than most competitors. Particularly useful for users in the UK and EU whose local food brands are missing or wrongly categorised in the American-leaning databases of MFP and Lose It!.

The premium tier adds meal plans, recipes, and detailed nutrition tracking; the free tier handles basic calorie and macro logging. Worth a trial if you have struggled with database accuracy on MFP for UK or European supermarket products.

Best for: UK and European users, anyone whose previous tracking attempts failed because the food database was American-centric, and users who want meal plans alongside tracking.

How to choose — and what to do once you have

The single most important framing: pick one and use it for at least 8 weeks before judging it. The "best app" question is much less interesting than the "what gets you to log every day" question — that depends on your specific friction points: interface preference, food-database coverage, whether you want behaviour-change content alongside tracking, and whether your eating pattern is calorie-based or structural.

For most people starting from zero, MyFitnessPal or Lose It! handle 80% of the job at no cost. If you find yourself wanting more micronutrient depth, Cronometer is the upgrade. If you are tracking diligently but behaviour is not changing, Noom addresses that specific failure. If your approach is structural rather than counting-based, Zero plus Google Fit covers the relevant data without forcing meal-by-meal logging. Stack thoughtfully — one food tracker, one structural tool, one activity layer — and the combined picture is usually enough. Adding a fourth app rarely improves outcomes; it more often adds friction without signal.

One final note on the pharmacological landscape: adults on semaglutide or tirzepatide often find appetite is no longer the primary issue, but logging still matters for adequacy of protein and micronutrients, particularly because reduced food intake can underdeliver on both. Cronometer is particularly useful in that context; discuss what tracking would be most helpful with your doctor or dietitian before adjusting your approach.

For the underlying eating-pattern work that any of these apps supports, see 29 science-backed dieting tricks that actually change eating behaviour. If tracking alone is not moving the scale, 10 reasons you may not be losing weight covers the failure modes beyond calorie logging — and the diet-versus-exercise question frames how to split effort between food and movement when you are not sure which lever to pull harder.