Nutrition & fitness coach
DietBuddy builds a personal calorie and macro plan from your body, goals and food preferences, then helps you stick to it with easy logging, an AI coach and progress you can see.
Free to start · No credit card required · For adults 18+
Personal targetsfrom proven formulas
Food numbersfrom USDA & Open Food Facts
3 AI coachesfor food, fitness & mindset
Your datastored in the EU, never sold
What DietBuddy does
Simple enough for every day, smart enough to keep you moving forward.
Answer a few questions and get daily calories, protein, carbs, fat, fibre and water targets based on the Mifflin-St Jeor formula and your activity. Safe minimums are built in.
Search a trusted food database, scan a barcode or snap a photo of your plate. Calories and macros come from USDA FoodData Central and Open Food Facts, never guessed.
Ask Aria about food, Max about training and Luna about sleep, stress and mindset. They know your targets and today’s log, so the advice fits your day.
Daily AI meal plans fit your targets and diet style. Every item is checked against your allergies and restrictions before you see it.
Weight trend, weekly calories, goal projection, body measurements, private progress photos, daily check-ins, streaks, levels and achievements.
Connect Apple Health or Health Connect to sync weigh-ins, steps and water. Smart scales and watches such as Apple Watch, Garmin, Fitbit and Withings join through them.
A friendly cartoon you whose shape follows your weigh-ins, with a timeline from your start to your goal.
Turn your week into a story image: streak, days on target, water and new badges. Your weight stays private unless you choose to add it.
Take a look
Your day at a glance
Meals and macros
Chat with your coach
See your progress
Your Digital Twin
Share your week
How it works
Your goal, measurements, activity, diet style, allergies and foods you avoid.
Daily targets, a hydration goal, an exercise suggestion and a realistic timeline to your goal.
Track meals and water, check in daily, ask your coach and watch your progress grow.
Safety & privacy
Targets never go below 1,200 kcal (women) or 1,500 kcal (men) a day, or your resting energy needs, and weekly loss is capped at 1% of your body weight.
Stored in the EU and visible only to you. Never sold, never used for advertising. Export or delete everything at any time.
The coach won’t encourage extreme restriction and points you to professional help if you’re struggling.
Optional features like AI body scans and wellness insights only run with your separate permission, and you can switch them off anytime.
DietBuddy gives general nutrition and fitness information and is not medical advice. Talk to a doctor before starting a new diet, especially if you have a medical condition or are pregnant. DietBuddy is for adults aged 18 and over.
FAQ
Yes. Your plan, food logging, water, check-ins, progress and a daily allowance of coach messages are free, with ads. Premium removes ads and adds unlimited coaching, full meal plans and more.
From USDA FoodData Central and Open Food Facts. The AI helps recognise foods and plan meals, but the numbers always come from a food database.
Yes, through Apple Health on iPhone or Health Connect on Android. Most scales and wearables, including Withings, Garmin, Fitbit, Apple Watch, Oura and Samsung Health, share their data there.
Your data is stored in the EU, is visible only to you and is never sold or used for ads. AI features receive only what each feature needs. You can export or delete everything in Profile → Privacy & Data.
Premium is managed by the App Store or Google Play. Cancel anytime in your store account settings, at least 24 hours before the next renewal.
No. It gives general guidance and estimates. Please talk to a doctor or dietitian about medical conditions, pregnancy or eating concerns.
Adults aged 18 and over. The app is currently available in English.
Download DietBuddy and get your personal plan in a few minutes.
Free to start · No credit card required