Lumen - Metabolic Coach

4.5
3.3K reviews
100K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Do you want to take control of your metabolism, lose weight, and live a healthier lifestyle?
With Lumen’s personalized metabolic coach, you can!

Lumen is the world’s first device to measure whether your body is burning fats or carbs - in a single breath. Say goodbye to guessing and hello to real-time metabolic insights, tailored daily nutrition plans, and recommendations on what to eat and when.

With direct access to your metabolism at your fingertips, our features will guide you to speeding up your metabolism, keep you motivated to reach your health goals, and feel your best self.

EVERYTHING YOU NEED TO HACK YOUR METABOLISM

Features include:
* Real-time metabolic insights to guide you on your journey
* Personalized daily nutrition plans
* Lifestyle recommendations for sleep, exercise, fasting, and more
* Customizable tracks to achieve your goals
* Healthy habit building
* Progress tracker
* Monthly cycle tracker
* An engaged community for support and discussions


This app integrates with Health apps to sync data on your activity and sleep.


SUITABLE PLANS FOR EVERYBODY


At Lumen, we believe in a personalized approach to health. That's why we offer different plans designed to fit your unique goals, whether it's weight loss, fitness performance, or improving your metabolic health. With our progress tracker and healthy habit influences, you'll have the support you need to succeed.




WORKING ON YOUR WEIGHT LOSS JOURNEY


By macro-tracking your meals, you can continue enjoying the meals you love with a new outlook and healthier relationship with food and yourself!


PERSONALIZED NUTRITIONAL PLANS & MEAL PLANNING


Lumen tracks your metabolism, but it’s also a powerful tool for managing your journey in nutrition, fitness, and overall well-being. The app includes interactive features to help you stay on track with your nutrition goals, such as meal planning and recipe suggestions.



FUELING UP PRE AND POST WORKOUTS

Don't let energy levels hold you back from your workout goals. Lumen gives you real-time insights into your body's fuel usage, so you'll know exactly when to hit the gym and when to rest. Lumen levels will guide you on whether you have enough energy or need to fuel up before your workouts.

SCIENTIFICALLY-BACKED


If you like talking science - we’ve been featured in peer-reviewed articles and building research ourselves. Lumen's technology has been scientifically proven to accurately measure metabolic fuel usage when compared to the gold standard (RER) for measuring metabolism in multiple validation studies.


PREMIUM CONTENT


Improve your knowledge with our informative library of videos from fitness experts, coaches, and nutritionists.


MOTIVATION


Every breath measurement will tell you what’s happening in your body. These insights help you maintain your motivation and give you guidance on how to hit your goals.

So, what are you waiting for? Download Lumen today and start your journey to a healthier, happier you! You'll have the support and guidance you need to take control of your metabolism and live your best life.


Lumen has been featured in Forbes, BBC News, TechCrunch,Entrepreneur.com, Wired Magazine, Shape Magazine, and more

Winner of the CES 2019 Best Reviews Award | Listed in the Top 30 Best Devices CES 2019 | Esquire 2020 product award

Please note:
You must have a Lumen device to use this app. You can order your device from www.lumen.me
While Lumen is not intended as a medical device, it is recommended to consult your doctor before starting any nutrition plan.

Interested in partnering with us? Get in touch with us www.lumen.me/partners

Join us and begin your Lumen journey today!
Updated on
25 Oct 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.
This app may share these data types with third parties
App info and performance
This app may collect these data types
Personal info, Health and fitness and 4 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.5
3.22K reviews
Judy Jacobson
30 May 2025
The Lumen app is quite good. I appreciate the videos explaining how to improve your metabolism. They have a wonderful support team who answer questions thoroughly (smart, knowledgeable support specialists are rare.) The concept of measuring CO2 to identify your metabolic rate is excellent since there is a direct correlation. I am still starting my journey, so I can't give results yet. I am subtracting 1* because they don't keep track of sugars, so I have to pay for another app.
5 people found this review helpful
Did you find this helpful?
Lumen.me
2 June 2025
Thanks for the great review, Judy. We are so glad that you are loving your Lumen experience, and we are here to help if any questions come up along the way :)
Jose Arroyo
20 October 2024
Barely adequate. The meal tracking leaves a lot to be desired. It doesn't recognize some barcodes except for what's already in their system. If you make a mistake saving meal portions it has to be deleated and re-entered. The My Foods can't be edited/ deleted and the same foods keep being added to it. This app is very tedious, the only thing that works is the breath analyzer. I'm going to start using Lose-it for my meals. Why aren't there any smart scales that can connect to this?
7 people found this review helpful
Did you find this helpful?
Tim Macklin
31 December 2024
Simple integration with the hardware. Very good. I think they have oversimplified things for biohackers like me. Probably great for people less interested in the details, but I think it would be great to offer more data about what's going on behind the scenes. Maybe a "biohackers mode" that pulls the curtain away and allows the user to see what's going on with their metabolism and how that is reflected in the data the device is gathering.
5 people found this review helpful
Did you find this helpful?
Lumen.me
2 January 2025
Thank you for your feedback, Tim! We’re glad to hear that the integration with the hardware is working well for you. Your idea of a “biohackers mode” is really interesting! We’ll pass this suggestion along to our team, as we are always looking to improve our user's experience.

What's new

Thanks for using Lumen! This update includes new features to keep you on track with your Lumen goals.