Macronaut

In-app purchases
Content rating
Everyone
5+
Downloads
Content rating
Everyone
In-App Purchases
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About this app

Macronaut is the macro and nutrition tracker that does the thinking for you.

Log meals in seconds by scanning a barcode, a nutrition label, or just a photo of your plate — Macronaut's AI reads it and fills in the calories, protein, carbs, fat, and more automatically. No more scrolling through endless food databases.

KEY FEATURES

• AI nutrition coach — spots patterns across your logs and gives you real, personalized feedback instead of generic tips
• Barcode, label, and photo scanning — unlimited scans, powered by AI
• AI recipes — built from what's actually in your pantry, so nothing goes to waste
• Smart grocery lists — generated from your goals, meal plans, and low-pantry items
• Custom meal types — Breakfast, lunch, dinner, snacks, or add your own (second breakfast, pre-workout, late-night snack — whatever fits your day)
• Diet & allergy aware — set a vegetarian, vegan, or pescatarian preference and hard-block allergens; every AI suggestion respects it
• Goal switching — change your goal (cut, bulk, maintain) and preview your new targets before committing
• Daily motivation — a short, personalized message in your coach's voice to keep you on track
• Weight and macro trends — see your progress over time, not just today's numbers

Whether you're counting macros for the first time or you're a seasoned lifter dialing in a cut, Macronaut cuts the busywork out of tracking so you can focus on the results.

Pro unlocks the full AI coach, unlimited scanning, AI recipes, and smart grocery lists. Supporter and Mega Supporter tiers are optional ways to back development further and get early access to new features.
AI macro tracking, meal scanning, and a nutrition coach in your pocket.
Updated on
Sep 1, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Financial info, Health and fitness, and Photos and videos
  • This app may collect these data types
    Personal info, Financial info, and Health and fitness
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

Invite links that fill the code in for your friend — no typing, no remembering.
New one-off challenges: try a feature for the first time and the credits are yours automatically.
Post about Macronaut and tag @macro_naut to earn credits, reviewed by a human.
Occasional tips about features you have not tried yet — one switch turns them off in Profile.
Referral rewards now settle overnight instead of waiting for you to open the app.