Smart Food Logging
Search a massive food database, scan any barcode in seconds, or re-log a saved favorite with a single tap. Logging a meal should take 10 seconds, not 2 minutes.
- Barcode scanner powered by Open Food Facts — works on virtually any packaged food
- Instant search across hundreds of common foods with full macro breakdowns
- Save frequently eaten meals and re-log them instantly from your history
- Logs sync automatically to Apple Health as dietary energy & macronutrients
Personalized Macro Targets
Your targets are calculated from your actual body stats — not a generic formula. Set your goal and get exact daily numbers for calories, protein, carbs, and fat.
- Mifflin-St Jeor equation for precise BMR and TDEE calculations
- Goal modes: Cut, Bulk, Maintain, and Recomp — each with appropriate macro splits
- Targets update instantly when you log your weight or change your activity level
Workout Tracker
Log sets, reps, and weight with a clean interface built for the gym. Built-in templates for every training style, rest timers that vibrate at the right moment, and automatic PR tracking.
- Built-in templates: Push/Pull/Legs, Upper/Lower, Full Body, HIIT, Cardio
- Configurable rest timer with haptic feedback so your phone stays in your pocket
- Personal records detected and celebrated automatically
- Completed workouts sync to Apple Health
Dashboard & Rings
Your entire day at a glance. Animated macro rings fill in real-time as you log, your net calorie balance updates live, and a scrollable timeline shows every meal in order.
- Four animated rings for calories, protein, carbs, and fat — inspired by Apple's Activity rings
- Live net calorie balance accounting for exercise calories from Apple Health
- Scrollable meal timeline showing every food entry with macros
- 7-day summary strip so you can see your week without opening Analytics
Water Tracking
Staying hydrated is half the battle. Log water in one tap with smart presets, and let FYB automatically set your daily goal based on your body weight.
- One-tap presets (8 oz, 12 oz, 16 oz, 20 oz) plus a custom amount option
- Daily goal auto-calculated from your logged body weight
- Optional gentle reminders spaced throughout the day
Analytics & Projections
Raw data is noisy. FYB smooths your weight trend, shows you real weekly averages, and tells you exactly when you'll hit your goal — based on your actual pace, not a calculator guess.
- Smoothed weight trendline filters out daily fluctuations to show your true direction
- Weekly macro adherence averages so you know how well you're actually sticking to targets
- Projected goal date calculated from your real rate of change
- Workout frequency chart and personal records history
Recipe Builder
Build custom meals once, log them forever. Add ingredients, get auto-calculated macros, scale by serving size, and log your creation in a single tap from anywhere in the app.
- Add any food from the database as an ingredient with precise gram weights
- Macros per serving calculated automatically — just define how many servings the recipe makes
- Scale servings at log time (log half a recipe, or double)
Morning Briefing
Wake up knowing where you stand. A daily notification at your chosen time recaps yesterday, sets your focus for today, and with FYB Pro, adds personalized AI-powered insights based on your patterns.
- Yesterday's macro totals, calories, and workout summary in one glance
- Today's targets and your current streak — keeps momentum going
- FYB Pro: AI-generated insights that notice trends, flag missed targets, and offer actionable nudges
Apple Health Integration
FYB doesn't live in a silo. It reads your activity data from Apple Health and writes your nutrition data back — so every app you use sees the full picture.
- Reads: Steps, active calories, workouts, resting heart rate, body mass
- Writes: Dietary energy, protein, carbohydrates, and fat back to Health after every log
- Net calorie balance on the dashboard accounts for exercise calories automatically
- Your HealthKit data is never sent to our servers — it stays on your device
