The Best Apps to Track Weight in 2026: 6 Apps Compared

Looking for the best apps to track weight? There are hundreds of them, and most do the same basic job: you enter a number, you get a chart. The real differences lie elsewhere: what the app tracks alongside your weight, how it handles daily fluctuations and whether it can show you changes the scale misses. We compared six popular options, including our own app Marava, being upfront about what each one does best.

In short

• Cronometer: the most detailed nutrition tracking, with weight and body fat in the biometrics.
• MyFitnessPal: the classic calorie counter, with a huge food database and a simple weight log.
• MacroFactor: a smoothed weight trend that adjusts your calorie target, with photos and measurements.
• Happy Scale: the minimalist option, weight only, with a well-smoothed trend line.
• Withings: the natural choice if you have a Withings smart scale, which measures body composition.
• Marava: weight and body fat on one dashboard, with aligned progress photos as the core feature.

How we compared these weight tracking apps

We looked at five criteria that matter when the goal is to track your body, not just your meals:

1. Weight trend: does the app help you see past day-to-day swings?
2. Body fat: can you log it next to your weight?
3. Progress photos: does the app have them, and are they easy to compare?
4. Main focus: is weight tracking the core of the app or a side feature?
5. Pricing model: is there a free version?

Features and prices change often, and vary by country and platform. This comparison reflects what the apps offered as of October 2026: check the store listing before you subscribe.

Comparison table

Cronometer: the most complete nutrition tracker

Cronometer is known for the depth of its food logging: it tracks calories and macros, but also dozens of vitamins and minerals, from verified food sources. Weight and body fat percentage are logged as "biometrics" in your diary, and you can add other values such as waist size or blood pressure. The paid Gold plan adds custom biometrics and charts that compare two data points over time.

On photos, Cronometer offers a feature called Snapshots for uploading body photos with your vitals at the time. According to Cronometer's own team, it's a Gold feature and is available on the web version only.

Best for: people who want precise nutrition data first, with weight as a supporting metric.

MyFitnessPal: the calorie counting classic

MyFitnessPal is one of the most widely used calorie counters, mainly thanks to its very large food database. Weight logging is included in the free version, and the Progress section draws a chart of your weigh-ins. You can attach a photo to a weigh-in and add extra measurements, but these remain secondary features: the app is built around the food diary.

Several features, including the barcode scanner, have moved to the paid Premium plan in recent years.

Best for: people whose priority is counting calories, with a simple weight log on the side.

MacroFactor: weight trend and adaptive coaching

MacroFactor turns your daily weigh-ins into a smoothed trend, so one salty dinner doesn't look like a setback. That trend, combined with your food logs, feeds an algorithm that estimates your energy expenditure and adjusts your calorie target each week. Since 2023, the app also tracks body measurements and progress photos (front, side and back), with a side-by-side comparison view.

There's no free tier: after a trial, it's a subscription. And the coaching works best if you log your food almost every day.

Best for: people who like data and want an app that adjusts their calorie target for them.

Happy Scale: weight only, done well

Happy Scale, on iPhone, does one thing: smooth your weigh-ins into a moving average so you can see the real trend instead of daily swings. It sets milestones toward your goal and syncs with Apple Health. It doesn't track body fat or progress photos: it's the most minimalist option in this comparison. The app is free, with in-app purchases.

Best for: people who weigh themselves daily and get discouraged by fluctuations.

Withings: for smart scale owners

The Withings app is designed to go with Withings scales. On compatible models, each weigh-in automatically records your weight and body composition estimated by bioelectrical impedance (body fat, muscle mass, water), with no manual entry. The app is free, and the optional Withings+ subscription adds extra programs and scores. Without a Withings scale, it's much less useful, and it isn't built around progress photos.

Best for: people who already own, or plan to buy, a Withings scale.

Marava: weight and body fat, plus photos that show the change

Marava tracks the numbers you'd expect: weight, body fat percentage and BMI calculated automatically, on one dashboard with the trend that ties them together. But that's not its main strength.

What sets Marava apart is the photos. The scale gives you one number; it can't tell fat from muscle, or show your waist shrinking when your weight stalls. Progress photos can, provided they're comparable from one month to the next. That's what Marava is built for:

• Ghost overlay: when you take a new photo, last month's photo appears as a transparent layer over the camera, with alignment guides, so you repeat the same pose and framing.
• Timeline: drag a slider across the months and watch your body change in place, instead of flipping between screenshots.
• Timelapse export: turn your check-ins into a transformation video in one tap.
• Privacy: photos are blurred when you open the app, kept separate from your camera roll, never used for advertising, and there are no ads.

Marava doesn't count calories. If nutrition matters to you, it pairs well with a food tracker like Cronometer or MyFitnessPal: one for what you eat, the other for how your body changes.

Best for: people who want to see their transformation, not just a curve, and keep those photos private.

Which weight tracker app should you choose?

• You want to count calories or nutrients → Cronometer (precision) or MyFitnessPal (database size).
• You want an app to set your calorie target → MacroFactor.
• You just want a calm weight trend → Happy Scale.
• You own a Withings scale → the Withings app, for automatic body composition.
• You want to see your progress, not just measure it → Marava, for weight, body fat and comparable photos in one place.

Whatever you choose, the method matters more than the app: weigh yourself under the same conditions (in the morning, after the bathroom, before eating), look at the weekly trend rather than the daily number, and add a measurement that the scale can't give you, such as your waist or a monthly photo.

Conclusion: the best weight tracking app depends on what you want to see

The best apps to track weight all do the basics well. The choice comes down to what you add to that number: nutrition with Cronometer or MyFitnessPal, coaching with MacroFactor, simplicity with Happy Scale, automation with Withings. If what keeps you going is seeing your body change, Marava brings together weight, body fat and progress photos you can actually compare.