{"app_store_id":1395149502,"slug":"lumen-metabolic-coach-1395149502","name":"Lumen - Metabolic Coach","subtitle":"Hack your metabolism","icon_url":"https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/97/9a/bd/979abd47-74db-8a95-3bf5-0740a87f6edc/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/512x512bb.jpg","store_url":"https://apps.apple.com/us/app/lumen-metabolic-coach/id1395149502?uo=4","price":0,"currency":"USD","rating":4.59122,"rating_count":6539,"in_app_purchases":false,"recent_rating":null,"recent_review_count":null,"reviews_checked_at":null,"primary_genre":"Health & Fitness","version_date":"2026-10-02T03:27:31Z","updated_at":"2026-10-20T16:56:17.073Z","stale":false,"missing_since":null,"one_liner":"Metabolic coaching app that reads fat or carb burn from breath, with daily nutrition plans, habit tracking and a.","verified_maker":false,"maker_site":null,"file_size_bytes":282596352,"minimum_os":"15.0","content_rating":"12+","language_count":1,"screenshots":["https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0a/6c/a0/0a6ca003-9a8f-dd46-6ce9-9b549e35bdf6/5.5-1.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/e6/94/ad/e694adc5-03df-786c-2252-6b82ee451a14/5.5-2.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/86/de/86/86de86a7-d709-db8a-0109-bacdd5386698/5.5-3.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/73/ec/45/73ec45eb-fa95-3b36-acac-ed0d1b659052/5.5-4.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/93/bf/8a/93bf8aa4-96e1-cd45-4a0b-efe8881163e5/5.5-5.png/392x696bb.png","https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e9/c7/60/e9c760ba-4fb5-2761-3abc-71380f54b65d/5.5-6.png/392x696bb.png"],"developer_name":"Meta Flow Ltd","editors_choice":false,"url":"https://apptierlist.com/apps/lumen-metabolic-coach-1395149502/","api_url":"https://apptierlist.com/api/v1/apps/lumen-metabolic-coach-1395149502","schema_version":"1.0","generated_at":"2026-10-22T01:38:26.823Z","data_as_of":"2026-10-21T23:08:12.680Z","description":"Do you want to take control of your metabolism, lose weight, and live a healthier lifestyle?\nWith Lumen’s personalized metabolic coach, you can!  \n\nLumen 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.\n\nWith 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. \n\nEVERYTHING YOU NEED TO HACK YOUR METABOLISM\n\nFeatures include:\n* Real-time metabolic insights to guide you on your journey\n* Personalized daily nutrition plans\n* Lifestyle recommendations for sleep, exercise, fasting, and more\n* Customizable tracks to achieve your goals\n* Healthy habit building\n* Progress tracker\n* Monthly cycle tracker\n* An engaged community for support and discussions\n\n\nThis app integrates with Health apps to sync data on your activity and sleep.\n\n\nSUITABLE PLANS FOR EVERYBODY\n\n\nAt 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.\n\n\n\n\nWORKING ON YOUR WEIGHT LOSS JOURNEY \n\n\nBy macro-tracking your meals, you can continue enjoying the meals you love with a new outlook and healthier relationship with food and yourself!\n\n\nPERSONALIZED NUTRITIONAL PLANS & MEAL PLANNING\n\n\nLumen 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. \n\n\n\nFUELING UP PRE AND POST WORKOUTS\n\nDon'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. \n\nSCIENTIFICALLY-BACKED\n\n\nIf 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.\n\n\nPREMIUM CONTENT\n\n\nImprove your knowledge with our informative library of videos from fitness experts, coaches, and nutritionists.\n\n\nMOTIVATION\n\n\nEvery 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.  \n\nSo, 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.\n\n\nLumen has been featured in Forbes, BBC News, TechCrunch,Entrepreneur.com, Wired Magazine, Shape Magazine, and more\n\nWinner of the CES 2019 Best Reviews Award | Listed in the Top 30 Best Devices CES 2019 | Esquire 2020 product award\n\nPlease note:\nYou must have a Lumen device to use this app. You can order your device from www.lumen.me\nWhile Lumen is not intended as a medical device, it is recommended to consult your doctor before starting any nutrition plan.\n\nInterested in partnering with us? Get in touch with us www.lumen.me/partners\n\nJoin us and begin your Lumen journey today!","facts":{"developer_id":1030318472,"developer_url":"https://www.lumen.me","first_released":"2019-08-20T07:00:00Z","support_url":"http://faq.lumen.me/en/","privacy_url":"https://www.lumen.me/privacy-policy","website_url":"https://www.lumen.me/","app_version":"3.30.16 (3591)","release_notes":"Thanks for using Lumen! This update includes new features to keep you on track with your Lumen goals.","rating_current_version":4.59122,"rating_count_current_version":6539,"star_counts":[256,76,134,1149,4923],"genres":["Health & Fitness","Lifestyle"],"languages":["EN"],"content_advisories":["Infrequent/Mild Medical/Treatment Information"],"device_families":["iphone","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-20T16:56:17.073Z","catalog_read_at":"2026-10-17T16:00:14.441Z","reviews_checked_at":null,"summary_written_at":"2026-10-19T12:03:11.599Z","placed_at":"2026-10-16T16:32:47.878Z","scored_at":"2026-10-21T23:08:12.680Z"},"editorial":{"one_liner":"Metabolic coaching app that reads fat or carb burn from breath, with daily nutrition plans, habit tracking and a.","what_is":"Lumen is a Health & Fitness app described as a metabolic coach. It uses a breath measurement to show whether the body is burning fats or carbs, and pairs this with daily nutrition plans, meal planning, and lifestyle recommendations. It also includes a progress tracker, a monthly cycle tracker, habit building, and an optional community.","good_for":["People tracking fat or carb burn during weight loss","Planning meals and nutrition around workouts","Syncing sleep and activity data from Health apps"],"pricing":"Lumen - Metabolic Coach is free, with no in-app purchases on the App Store.","faq":[{"q":"Do I need a separate Lumen device to use the app?","a":"The listing describes Lumen as a device that measures fat or carb burn in a single breath. It does not clearly state whether the app works without that device. Not stated on the App Store."},{"q":"Does the app connect to my health data?","a":"Yes. The app integrates with Health apps to sync data on activity and sleep."},{"q":"Is the measurement scientifically validated?","a":"The technology was validated in multiple studies against RER, the gold standard for measuring metabolism. It also says the company has been featured in peer-reviewed articles. No specific studies are cited on the App Store."}],"model":"claude-haiku-5-5","created_at":"2026-10-19T12:03:11.599Z"},"memberships":[{"list":"weight-loss-planning","list_name":"weight loss planning","list_status":"active","list_url":"https://apptierlist.com/best/weight-loss-planning/","position":19,"tier":"C","score":67.6,"components":{"rating":91.5,"votes":78.8,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-16T16:32:47.878Z"},{"list":"weight-loss","list_name":"weight loss","list_status":"active","list_url":"https://apptierlist.com/best/weight-loss/","position":79,"tier":null,"score":67.6,"components":{"rating":91.5,"votes":78.8,"rank":0,"recency":100},"status":"active","review_status":"checked","list_ranking_status":"ranked","confidence":"provisional","judged_at":"2026-10-16T16:32:47.878Z"}],"main_list":"weight-loss-planning","claim":{"status":"none","verified":false,"site_url":null,"verified_via":null,"verified_domain":null},"history":[{"id":132069,"at":"2026-10-16T16:56:01.295Z","kind":"tier_changed","list":"weight-loss-planning","app_store_id":1395149502,"app":"lumen-metabolic-coach-1395149502","from":null,"to":"C","reason":"score 67.6","job":"rescore"},{"id":131439,"at":"2026-10-16T16:32:47.878Z","kind":"membership_added","list":"weight-loss-planning","app_store_id":1395149502,"app":"lumen-metabolic-coach-1395149502","from":null,"to":"active","reason":"Provides personalized nutrition plans and customizable tracks matched to goals such as weight loss.","job":"shadow"},{"id":131438,"at":"2026-10-16T16:32:47.878Z","kind":"membership_added","list":"weight-loss","app_store_id":1395149502,"app":"lumen-metabolic-coach-1395149502","from":null,"to":"active","reason":"Marketed as a metabolic coach to lose weight, with personalized plans, guidance and progress tracking.","job":"shadow"},{"id":125294,"at":"2026-10-16T08:35:49.904Z","kind":"app_added","list":null,"app_store_id":1395149502,"app":"lumen-metabolic-coach-1395149502","from":null,"to":null,"reason":"discovered","job":"import"}],"explain":{"method":"Membership is decided by a model judging the App Store listing against the list's definition (and its excludes, for memberships placed or rechecked since they were added to the prompt); every verdict is listed with its date; the score is a plain average of the public components an app has (four, plus Apple's Editors' Choice badge as 100 where shown); nothing is purchasable.","lists":[{"list":"weight-loss-planning","list_name":"weight loss planning","status":"active","review_status":"checked","position":19,"tier":"C","score":67.6,"components":{"rating":91.5,"votes":78.8,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Provides personalized nutrition plans and customizable tracks matched to goals such as weight loss.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-16T16:32:47.878Z","attempts":1,"current":true},{"verdict":"keep","reason":"It builds personalized daily nutrition plans and customizable goal tracks from the user's own metabolic readings, which matches the request for a step-by-step plan that fits my body and goal.","verifier":"list check","decided_at":"2026-10-16T16:32:47.878Z","attempts":1,"current":true}]},{"list":"weight-loss","list_name":"weight loss","status":"active","review_status":"checked","position":79,"tier":null,"score":67.6,"components":{"rating":91.5,"votes":78.8,"rank":0,"recency":100},"ranks":[],"verdicts":[{"verdict":"keep","reason":"Marketed as a metabolic coach to lose weight, with personalized plans, guidance and progress tracking.","verifier":"claude-sonnet-5-5","decided_at":"2026-10-16T16:32:47.878Z","attempts":1,"current":true},{"verdict":"keep","reason":"Lumen is a metabolic coach built for weight loss. 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