Calorie counting is boring. Walking buddies aren't.
Meet Lumo, your tiny trail buddy. Every day you eat a little better and move a little more, Lumo treks further down the trail. Bye Belly turns weight loss into a journey you can actually see, powered by an AI calorie counter that does the tedious part for you.
SNAP YOUR MEALS
Log any meal in seconds: take a photo, say it out loud, or type a quick note like "chicken rice". Our AI breaks it down into calories and macros per item, gives you Lumo's take, and scores the meal with one simple number. AI got something wrong? Tap to fix it.
MOVE THEM OFF
Your daily quests come from your real day: steps, water, movement breaks. Had a heavier meal? Lumo offers a balance-it-out challenge instead of a guilt trip. Clear your quests and watch them turn into progress on the trail.
WATCH LUMO GO
Every completed day sends Lumo further down a hand-drawn trail full of chapters, campfires, obstacles, and hidden rewards. Your streak isn't just a number. It's a journey you can see.
TRACK WHAT MATTERS
Get a daily calorie budget tuned to your body and your goal. Watch your macro breakdown, weight trend, and calories-burned charts move as you do. Look back at any day of your journey with this simple food tracker and weight loss diary.
KIND BY DESIGN
Ate a burger? Lumo gives you a supportive side-eye, not a lecture. Weight went up this week? You get encouragement, not shame. Building habits is hard enough. Your app should be on your side.
WHY PEOPLE STAY
- Instant AI meal scanning, no manual calorie lookups
- Photo, voice, or typed logging, whatever fits the moment
- Daily quests and streaks that make consistency fun
- A hand-drawn trail that turns showing up into an adventure
- A buddy that celebrates you, never judges you
BYE BELLY PLUS
Unlock the full experience with Bye Belly Plus, an auto-renewing subscription: monthly with a 7-day free trial or yearly with a 14-day free trial. Subscriptions renew automatically unless canceled in your Google Play account settings at least 24 hours before the period ends.
Bye Belly is an educational wellness app, not a medical device. Calorie and macro values are AI estimates. Always consult a health professional for medical advice.
Your journey starts with one photo. Lumo is waiting on the trail.
Snap a photo, get instant AI calorie counts, and grow with Lumo every day