Weight Loss Tracker & BMI

Contains adsIn-app purchases
4.5
86.8K reviews
10M+
Downloads
Content rating
Everyone
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About this app

aktiBMI - Your Smart Weight Loss Companion

Join over 500,000 users who trust aktiBMI to lose weight, track BMI, and stay motivated on their journey. aktiBMI turns weight loss into a clear, visual experience - no confusing data, just real progress you can see. Whether you want to reach your ideal body weight, monitor your BMI, or maintain a healthy lifestyle, aktiBMI is your all-in-one Weight Tracker and BMI Calculator.

🎯 Set Goals. See Results. Stay Motivated.
Define your goal weight and watch your progress unfold with detailed weight charts and statistics. Celebrate every milestone, receive smart reminders, and stay consistent with healthy routines that build lasting habits. aktiBMI helps you stay on track, whether you are losing the first few pounds or fine-tuning your ideal shape.

📐 Understand Your Body Better
aktiBMI calculates your Body Mass Index (BMI) accurately, considering age, gender, and body type. Monitor your body composition and go beyond the number on the scale - track body fat percentage, muscle mass, and water balance. This makes aktiBMI the perfect body weight app for anyone serious about understanding their health and fitness in detail.

📊 Visual Progress Tracking
Your personal dashboard shows clear progress charts, daily logs, and historical trends. Record your weight every day in your weight log and instantly see how far you have come. Visual insights turn your data into motivation - because seeing results keeps you going.

💪 Build Healthy Habits That Last
aktiBMI helps you not just lose weight but manage it long-term. Learn to maintain a healthy weight through regular tracking, awareness, and motivation. By connecting goals with visible results, aktiBMI helps you build a balanced, confident lifestyle.

🏆 Motivation & Success Stories
Thousands of users share their success with aktiBMI: "The app has been so helpful. I've lost 30 lbs since 2019!" Real people, real progress. Our user community proves that continuous tracking and small daily improvements lead to big changes. With aktiBMI, every weigh-in brings you one step closer to your goals.

⚙️ Advanced Tools for Every Goal
- Weight Loss Tracker for steady progress
- BMI Calculator for precise results
- Body Composition Analysis for full insight
- Progress Charts & Weight Diary for motivation
- Goal Setting to define your target weight
- Weigh-in Reminders to stay consistent
- Multi-User Support for family and friends

📈 Perfect for All Fitness Levels
Whether you are beginning your journey or maintaining your healthy weight, aktiBMI adapts to your needs. Track changes in muscle mass, fat ratio, and waist circumference to better understand your transformation. Each entry helps you take control of your health - one step at a time.

🌟 Your Health Journey Starts Here
aktiBMI is designed for everyone who wants to stay motivated, monitor their progress, and live healthier. With a modern interface, easy data entry, and accurate BMI calculations, aktiBMI makes weight tracking simple and rewarding.

💚 Optimize Weight and Well-being
By using aktiBMI, you will see your progress clearly, stay motivated, and achieve results that last. Track your weight loss, follow your BMI trends, and keep your health goals in sight - every day.

👉 Download aktiBMI today - your complete Weight Tracker & BMI Calculator for lasting success. Stay focused, stay motivated, and enjoy a healthier, happier you!
Updated on
Sep 15, 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
84.5K 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.
5 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! 💪