Weight Tracker: BMI Calculator

Contains adsIn-app purchases
4.5
86.9K reviews
10M+
Downloads
Content rating
Everyone
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About this app

🚀 The #1 Weight Tracker and BMI Calculator for Real Results!

Join over 500,000 users who trust aktiBMI to track their weight loss, calculate their BMI, and lose weight successfully. aktiBMI is the comprehensive Weight Tracker you need. With a professional BMI calculator, a detailed weight diary, and advanced body composition tracking, aktiBMI helps you achieve lasting weight loss, stay motivated, and improve your overall health and fitness.

🎯 Set and Achieve Your Goal Weight FAST Define your goal weight and monitor your weight loss progress with clear charts and a structured weight tracker. Stay on track, celebrate small victories, and see results step by step. Our features are designed to help you lose weight and achieve your weight loss goals quickly and sustainably.

📐 Accurate, Professional BMI Calculator The BMI calculator considers age, gender, and body type to give you personalized results and a clear understanding of your starting point. Check your ideal weight range and monitor your Body Mass Index effortlessly.

📊 Weight Diary & Progress Charts Record your weight daily and analyze your weight loss journey with intuitive graphs. Identify trends, adjust your habits, and stay motivated throughout your progress with your personal weight diary.

🔍 Advanced Body Composition Tracking Go beyond weight: track crucial metrics like body fat percentage, muscle mass tracker, water balance, and specific body measurements (waist, hips, chest) to see your full body transformation. Perfect for anyone serious about tracking their health beyond just the number on the scale.

⏰ Smart, Consistent Weigh-in Reminders Stay consistent with automated weigh-in reminders so you never forget to update your progress and maintain your weight loss routine.

👨‍👩‍👧‍👦 Multi-user Support for Family & Friends aktiBMI supports multiple users, making it easy for families or friends to track their weight loss and fitness goals together. Ideal for healthy competition and family fitness support.

Key Features:
=> Weight Loss Tracker 🚀
=> BMI Calculator 📐
=> Body Composition & Body Fat Tracking 🔍
=> Weight Diary & Progress Charts 📊
=> Goal Setting 🎯
=> Weigh-in Reminders ⏰
=> Multi-user Support 👨‍👩‍👧‍👦

Download aktiBMI today – the smart way to calculate your BMI, track your weight loss, and start reaching your health and fitness goals with confidence. Get the best Weight Tracker on the market!
Updated on
Dec 3, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity, App info and performance, and Device or other IDs
Data is encrypted in transit

Ratings and reviews

4.5
84.6K reviews
A Google user
October 24, 2018
No matter which method I try, I cannot successfully import my weight log from my old phone, to my new one. Had I known this would have been an issue, I never would have downloaded this app to begin with. You should be able to sign up, where you can log into this app from anywhere, but, you cannot. It'd be nice if you could store info for more than just one person, as well. I have been using two apps to store my info, and my significant other. The app I used for him, saved his info.
6 people found this review helpful
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Sara Hardesty
January 17, 2022
I just purchased pro for the extra logging options, but what a waste. I've had to re-enter data and save multiple times as the app didn't save the 1st time. It only allows muscle in %, and my scale gives it in lbs. I can change my height to inches, but I can't change the measurements from cm. I'd like to be able to track a few other things, but there's no option to add or repurpose.
120 people found this review helpful
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BILL B
August 27, 2023
This 'newer' version, designed around advertising, isn't as simple & straight forward as the old one. Sound doesn't work. That said - assuming you 'upgrade' ($40) you can get rid of advertising. It offers a bunch of stuff, not sure of value yet, to help monitor & control weight. I liked the older display better, but I don't 'need' my picture to know it's my info. The graphs & charts may be useful. Not sure yet.
37 people found this review helpful
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aktiWir GmbH
August 27, 2023
Hello Bill,Thank you for your feedback. We appreciate it. We want to let you know that a dedicated team of developers and diet experts is currently working on the app, gradually introducing new features to enhance the user experience. Our aim is to highlight your achievements even more and provide greater motivation. Your support means a lot to us!

What’s new

🎯 aktiBMI supports you on your journey to your ideal weight. Together, we’ll reach your goal! 💪