fuelOS

Don't log your life, live it.

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Everything you put in your body. One place. Food. Supplements. How you feel. Logged in the order you live them. fuelOS is built for people who take what goes in seriously. Anyone can pick it up. CAPTURE IN ONE GESTURE Snap a photo. Speak. Scan a barcode. The card appears and fills in as it reads, section by section. No forms. THE STACK Your supplements, vitamins, powders, and the rest of your routine, in one view. Point the camera at the bottle to add it. Log a dose in one tap from your Home Screen. Set reminders, then log, skip, or snooze. DOWN TO THE COMPOUND Macros and micronutrients, estimated by AI from the photo. fuelOS also estimates bioactive compounds in your food, like curcumin and beta-glucans. The detail you usually have to hunt for is already on the card. Estimates carry a ~, so a guess never reads like a scanned label. HOW YOU FEEL A daily check-in for energy, mood, and focus. Logged beside what you ate that day. CARRY IT EVERYWHERE Quick-log from the Home Screen widget or with Siri and Shortcuts. Meals and macros sync to Apple Health. Turn a streak or a strong day into a clean card, stating one true fact about your own data. FREE TO START A few free AI meal scans a day. Re-logging a past meal is always free. fuelOS PRO Unlimited logging. Micronutrient estimates. The analytics dashboard. Apple Health. Export your data, anytime. Take what goes in seriously. Start here. fuelOS uses AI to estimate nutrition from meals you log. All nutritional data is approximate and for informational purposes only. This app is not intended to diagnose, treat, cure, or prevent any disease or health condition. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your diet or health. You may find the citations for peer-reviewed research papers we utilize to set the default values for calories and macros in Settings → Footer → "Sources" Terms of Use: https://fuelos.site/terms Privacy Policy: https://fuelos.site/privacy License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

  • 5.0
    out of 5
    12 Ratings

1.11.0 brings a major performance overhaul to logging. We’ve reworked how fuelOS loads your history and updates your screen, reducing the processing behind switching days, logging food and checking your Dashboard. This update also brings redesigned protein streak cards, streak protection for fasting days, and fixes to supplement reminders. The recorded phone traces support that emphasis: main-thread CPU time fell from 2,549 → 702 ms for switching days and 1,773 → 1,247 ms for text logging.

The developer, Abay Bektursun, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Health & Fitness
    • Contact Info
    • User Content
    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
Abay Bektursun
Size
39.1 MB
Category
Health & Fitness
Compatibility
Requires iOS 26.0 or later.
  • iPhone
    Requires iOS 26.0 or later.
  • Mac
    Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 26.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • fuelOS Pro Monthly $9.99
  • fuelOS Pro Annual $89.99
Copyright
© 2026 fuelOS. All rights reserved.