
Protein Tracker: MuscleFuel AI
Bulking, Gain & Strength
0 ratings
Free
In-App Purchases
Rating summary
About
The AI protein tracker for muscle gain. Set your daily protein target, log what you eat in seconds, and watch the streak build — no spreadsheets, no math.
FREE — NO LIMITS, NO COUNTDOWN
• Daily protein target — auto-calculated from your weight, gender, and training frequency
• Unlimited logging — log as many meals and as many days as you want, free, forever
• Quick Add — one-tap log for your most-eaten foods
• Meal windows — every log is bucketed automatically, and the windows follow your training. Train in the morning and you get a Pre-Workout and Post-Workout window where they actually belong, alongside Breakfast, Lunch, Afternoon and Dinner
• Full history — every day you've logged, kept for good
• Progress analytics — your last 7 days and whether you're trending up, down, or holding against target
• Streak tracking — see how many days in a row you hit your target
• Lock-screen widget — daily progress ring without opening the app
• Apple Sign In — fast, private, no passwords
MUSCLEFUEL PRO
• Voice food log — say "two eggs, chicken breast" and we log it
• Photo scan — snap a meal and AI identifies the food and estimates the protein
• Weekly progress reports
• AI Nutrition Coach — ask it anything about your intake
$4.99/week or $39.99/year, both with a 3-day free trial. Auto-renews until canceled in Settings > Apple ID > Subscriptions.
WHO IT'S FOR
Lifters chasing muscle gain, bulkers, lean bulkers, cutters, and anyone tracking protein without juggling apps.
Built for people who want to track protein and get on with their day.
LEGAL
Terms of Use (EULA): https://musclefuel.aiappnation.com/terms
Privacy Policy: https://musclefuel.aiappnation.com/privacy
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What's New in Protein Tracker
1.0.12
October 1, 2026
New: Stack Check reads the whole Supplement Facts label from up to 4 photos and adds up everything you take in a day — caffeine, creatine, protein, vitamins and minerals. You get a warning when a total goes over a published limit, with the source. Also new: add a missed protein entry to an earlier day from History, and choose light or dark appearance in Settings.
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Subscriptions & In-App Purchases
MuscleFuel Pro Weekly
AI food scan, voice log, coach, insights
$4.997 Days
3 Days trial






