# Lumen - Metabolic Coach — Hack your metabolism > Metabolic coach app providing real-time insights and personalized nutrition plans. (iPhone/iPad app by Meta Flow Ltd.) - Source: https://appshunter.io/ios/app/lumen-metabolic-coach/id1395149502 (this page in markdown: same URL + `.md`) - Developer: [Meta Flow Ltd](https://appshunter.io/developer/1030318472) - Category: Health & Fitness, Lifestyle - Price: Free - Rating: 4.59/5 from 6,535 App Store ratings · 699 written reviews indexed - Age rating: 12+ - Requires: iOS 15.0 · 265 MB - Languages: English - Released: 2019-08-20 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/lumen-metabolic-coach/id1395149502/reviews.md ## What is Lumen? 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! ## Key features - Real-time metabolic insights - Personalized daily nutrition plans - Lifestyle recommendations - Healthy habit building - Progress tracker - Monthly cycle tracker - Community support ## What do users think of Lumen? Overall sentiment: positive **Pros** - 👍 Easy to use - 🚀 Provides real-time insights - 💡 Helps understand metabolism - 🚀 Customized recommendations - 👍 Motivating and educational - 👍 Fantastic customer service **Cons** - 🐛 Inconsistent readings - 🔍 Limited food database - 💰 Expensive subscription - 🔍 Confusing app layout - 🔍 Lack of integration with other apps - 🔍 Restrictive carb recommendations **Commonly reported bugs** - App crashes and freezes - Difficulty calibrating the device - Inaccurate breath measurement detection **Most requested features** - Ability to edit logged foods and measurements - Integration with fitness and food tracking apps - More flexible and personalized carb recommendations - Improved meal planning and recipe suggestions ## Recent user reviews (10 of 699) All indexed reviews: https://appshunter.io/ios/app/lumen-metabolic-coach/id1395149502/reviews.md ### 3/5 — Okay Tech *2026-08-18, version 3.23.36 (3533)* Still has glitches but getting better ### 5/5 — Gamify *2026-08-14, version 3.23.36 (3533)* Does a really great job of gamifying food intake ### 1/5 — GET RID OF THE JUDGY KIDNEY BEAN!! *2026-08-13, version 3.23.36 (3533)* I’ve had the Lumen app for 2 years now and loved it, until the current update where there is a very judgmental kidney bean or jellybean looking thing that is sad if your reading is below a 2! Whoever made this change should be fired. It’s hard enough to remain positive and motivated without being frowned at by a cartoon character for having a NORMAL reading. Totally missed the mark here. I’m trying to continue using the app in spite of the rage I feel on the daily looking at this thing. Please get rid of it on the next update. And sign your UI team up for some sensitivity training for God’s sake. ### 5/5 — Great device *2026-08-11, version 3.23.36 (3533)* I used the Lumen for 3 years and the measurements helped me become metabolically flexible. ### 5/5 — Lumen-interesting insights *2026-08-01, version 3.23.36 (3533)* I really do love my Lumen; it has provided insights into how my metabolism works. Because of that, I am making better food choices and loosing some weight. Thank you! ### 1/5 — Customer Service *2026-07-20, version 3.22.15 (3502)* Price is way to expensive for what you get and customer service is very hard to get in touch with. No phone number to call and mostly just an Ai chatbot to talk to. If you get “transferred” to a real person via chat (cause that is the only option) the you may as well just send an email because the real person on chat takes just as long to reply. Any reputable company would have a phone number to call and ask for help asap….not make the customers wait for mailing the details of the issue(s) ### 2/5 — App used to be good but sucks now *2026-07-19, version 3.22.15 (3502)* I’ve been using my Lumen for a year and a half. The app used to function seamlessly and I found the bar code scanner and photo feature for logging meals to work pretty well. They’ve made a lot of changes to the app since then and it sucks now. The app is super glitchy now, particularly when taking my breath measurements. It gets so choppy and I’m convinced it doesn’t measure my breath accurately when it does that. Also, I can’t tell you how many food barcodes I scan these days that come up with “Sorry, item not found.” Seriously? Get it together. How am I supposed to log my food if half the bar codes I scan aren’t in your database? And the food photo feature used to work well and doesn’t work well at all. I’ve had it misidentify food to an embarrassing degree more than a few times. I don’t know what you all changed from how the app was a few years ago, but I beg of you, change it back. This app is becoming almost unusable and I’m about to bail on it. This isn’t the only app in that logs food so why would I continue to use one so riddled with issues? ### 5/5 — Helpful and seems accurate *2026-07-18, version 3.22.15 (3502)* The device reads really seem accurate and when i consistently measure it’s really helpful and motivating data. Worth the price. ### 1/5 — Not functional *2026-07-02, version 3.21.16 (3483)* I have been trying to reactivate my membership and already have a lumen device. I keep getting a white screen and broken links in the app when i was trying to restart membership. Also sent multiple messages to support and still have no resolution- i can only get the general readings, and when i try to sign up for membership through the app keep getting a 404 broken links message. It just does not work. ### 5/5 — Great insights into metabolism *2026-06-30, version 3.21.16 (3483)* Love the insights this app offers to help you understand the science behind your choices and personalized recommendations based off real time measurements. ## Frequently asked questions about Lumen ### What does the Lumen app do? The Lumen app provides real-time insights into your metabolism, helping you understand whether your body is burning fats or carbs. It offers personalized daily nutrition plans and lifestyle recommendations to support your health goals, such as weight loss and improved metabolic health. ### What are the key features of the Lumen app? Key features include real-time metabolic insights, personalized daily nutrition plans, lifestyle recommendations for sleep and exercise, healthy habit building, a progress tracker, a monthly cycle tracker, and access to an engaged community for support. ### How does the Lumen app help with weight loss? The app aids in weight loss by providing personalized nutritional plans and macro-tracking your meals. It helps you understand your body's fuel usage, guiding you on what and when to eat to support your weight loss journey and foster a healthier relationship with food. ### Is the Lumen app compatible with other health apps? Yes, the app integrates with Health apps to sync data related to your activity and sleep. This allows for a more comprehensive view of your health and progress. ### What kind of support does Lumen offer? Lumen offers support through an engaged community for discussions and shared experiences. Additionally, it provides access to premium content, including informative videos from fitness experts, coaches, and nutritionists, to enhance your knowledge. ## Version history (last 5 releases) ### 3.24.29 (3563) — 2026-08-20 Thanks for using Lumen! This update includes new features to keep you on track with your Lumen goals. ### 3.24.29 (3563) — 2026-08-20 Thanks for using Lumen! This update includes new features to keep you on track with your Lumen goals. ### 3.23.36 (3533) — 2026-07-29 Thanks for using Lumen! This update includes new features to keep you on track with your Lumen goals ### 3.22.15 (3502) — 2026-07-02 Bug fixes ### 3.21.16 (3483) — 2026-06-22 Bug fixes ## Apps similar to Lumen | App | Rating | Price | Category | | --- | --- | --- | --- | | [Carbon - Macro Coach & Tracker](https://appshunter.io/ios/app/carbon-macro-coach-and-tracker/id1437820611) | 4.8 (8,002) | Free | Health & Fitness | | [Carb Manager: Keto & Macro Log](https://appshunter.io/ios/app/carb-manager-keto-and-macro-log/id410089731) | 4.8 (733,332) | Free | Health & Fitness | | [RP Diet Coach & Planner](https://appshunter.io/ios/app/rp-diet-coach-and-planner/id1330041267) | 4.4 (11,810) | Free | Health & Fitness | | [Fooducate: Nutrition Coach](https://appshunter.io/ios/app/fooducate-nutrition-coach/id398436747) | 4.6 (77,535) | Free | Health & Fitness | | [Nutrition Coach: Food tracker](https://appshunter.io/ios/app/nutrition-coach-food-tracker/id1539625670) | 4.8 (87,733) | Free | Health & Fitness | | [Keto Diet App － Carb Tracker](https://appshunter.io/ios/app/keto-diet-app-carb-tracker/id1406879426) | 4.7 (82,159) | Free | Health & Fitness | ## More apps by Meta Flow Ltd - [Metabolic Research Lab](https://appshunter.io/ios/app/metabolic-research-lab/id6445818072) All apps by Meta Flow Ltd: https://appshunter.io/developer/1030318472 ## Related topics [lumen metabolism tracker](https://appshunter.io/ios/topics/lumen-metabolism-tracker) · [lumen](https://appshunter.io/ios/topics/lumen) · [fast metabolism](https://appshunter.io/ios/topics/fast-metabolism) · [metabolic macros](https://appshunter.io/ios/topics/metabolic-macros) · [metabolic fitness](https://appshunter.io/ios/topics/metabolic-fitness) · [metabolic](https://appshunter.io/ios/topics/metabolic) · [golo diet](https://appshunter.io/ios/topics/golo-diet) · [metabolic health](https://appshunter.io/ios/topics/metabolic-health) · [metabolic balance](https://appshunter.io/ios/topics/metabolic-balance) · [carbon diet coach](https://appshunter.io/ios/topics/carbon-diet-coach) · [carbon smart diet coach](https://appshunter.io/ios/topics/carbon-smart-diet-coach) · [vmax romexpo](https://appshunter.io/ios/topics/vmax-romexpo) · [cooper metabolic health](https://appshunter.io/ios/topics/cooper-metabolic-health) · [metabolic balance global ag](https://appshunter.io/ios/topics/metabolic-balance-global-ag) · [vademecum metabolico nutricia](https://appshunter.io/ios/topics/vademecum-metabolico-nutricia) · [nutrition coach](https://appshunter.io/ios/topics/nutrition-coach) · [nu skin prysm io](https://appshunter.io/ios/topics/nu-skin-prysm-io) · [cbg nutrition](https://appshunter.io/ios/topics/cbg-nutrition) · [the candida fix](https://appshunter.io/ios/topics/the-candida-fix) · [metabolic health summit 2024](https://appshunter.io/ios/topics/metabolic-health-summit-2024) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*