,The #1 BMI App – trusted by over 10 million usersl
Reach your ideal weight – with ease and motivation
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Health APP
aktiBMI was developed for 3 target groups:
Those who want to lose weight
Track your success – step by step!
aktiBMI helps you stay motivated. Just enter your weight – the app tracks your progress and shows you exactly how far you’ve come, day by day.
Health-conscious users
Understand your body – and stay in balance!
Track your BMI and weight regularly to maintain a healthy lifestyle. aktiBMI gives you insight into your long-term health data – simply and clearly.
Athletes & fitness-focused users
Push your limits – and measure real progress
With aktiBMI, you can track muscle mass, fat, and water levels. Perfect for anyone working towards defined training goals.
Everything you need for your body
Know where you stand – and where you want to go
Your BMI is more than just a number. It’s your starting point, your orientation, your personal compass. With aktiBMI, you calculate your BMI in seconds – based on trusted WHO standards – and understand what your body really needs.
Every step counts – and we show it to you
Your journey deserves to be seen. With aktiBMI’s weight diary, you don’t just enter numbers – you track victories. Every drop in weight, every milestone reached is visualized and celebrated. Because progress fuels motivation.
See what really changes – not just your weight
aktiBMI PRO gives you deeper insights: Track muscle mass, body fat, and water levels – and measure the changes that truly matter. For those who train with purpose and want to feel the difference in their body.
Reach your target weight step by step – we’re with you all the way
Enter your desired weight and track your progress, one step at a time. aktiBMI keeps you motivated with small celebrations and encouraging messages. Every milestone you hit boosts your motivation and brings you closer to your goal.
Track your success – and share it with your doctor
With aktiBMI, you can export a full PDF of your progress – including BMI, weight changes, and body metrics. Perfect for your doctor, nutritionist or just for yourself. Stay informed and in control.
Endorsed by medical professionals
Dr. med. Gerhard Schenko, Specialist in General Medicine, Diabetology.
"One of the best apps as a protocol for your weight loss"
aktiBMI is ideal for your weight regulation - even for medical use. It’s well designed and has a clear and intuitive interface.
Join 300,000+ users who are losing weight and loving the journey
Real stories. Real results.
Iris
Thanks to this app, I've lost 16 kg. It shows my healthy BMI so I know I won't overdo it. Just 4 kg left to go. What I love most about it is that it congratulates me every time I lose weight. Try it out and you'll love it.
Marco
The success came as I wished! The app has helped me soooo much: since 2019 - about 31!!! kg. A huge thank you for that ❤
Margit
The app is really great, I've been using it for years and find it very clear and also motivating. I would give it 10 stars if I could.
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Health APP
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