LeanFiftyCalorie & protein tracker · built for 40+
Get Lean.
Stay Strong.
The daily calorie and protein tracker for people 40+. Snap a photo to log a meal, get targets built around staying strong, and track your week — without the busywork.
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Everything you need to log less and stay on target
AI photo meal logging
Snap a photo of your plate and the AI identifies the ingredients and estimates calories and macros — no manual entry.
Type it, we do the math
Just type a food name and get an instant AI macro estimate. Fast logging for the meals you already know.
Personalized targets
A quick onboarding sets science-based calorie and protein goals (Mifflin-St Jeor) tuned for staying strong after 40.
Goal-aligned meal plans
Browse curated, protein-first meal plans and recipes that fit your daily targets and the way you like to eat.
Weekly & monthly progress
Apple-Health-style day rings show your week and month at a glance, so consistency is easy to see and keep.
Apple Health sync
On iPhone, steps, active energy and weight sync from Apple Health automatically to round out the full picture.
How it works
Snap a photo
Take a picture of your meal — the AI logs the ingredients and macros for you.
Get your targets
Answer a few quick questions and we set your daily calorie and protein goals.
Track your week
Watch your day rings fill in and stay on target with weekly and monthly trends.
Start tracking in under a minute
Join LeanFifty free and build the protein-first habit that keeps you lean and strong through your 40s, 50s and beyond.