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/
I downloaded this app also after seeing a Reddit post. I have used MacroFactor, MyFitnessPal, etc. I like what those apps offer, but there’s also just way too much going on within the app itself. I like the simplicity of this app and how streamlined everything is. Absolute gem of a calorie tracker, can see a few other things as well like sodium, caffeine, etc. I don’t personally use the barcode scanner (I had a few issues with it not adding the correct amounts of macronutrients) but just taking a picture of the nutrition label is sufficient enough for me. I also like how you can add in the time if you forgot to log it earlier in the day and didn’t realize till later. As long as this app exists I’ll be paying the $10 for it!
Based off Reddit post
Jailbreakid
I ended up downloading this app off of a Reddit post .once I downloaded the app and start scanning my food. I noticed that the AI and the tracking of this particular app actually tracked the ingredients of the type of food that you eat not necessarily go based off of the database which is found in many other apps, the app is itself is smooth is clean and I’m still testing at the moment but right now at the time. I’m definitely a big fan of it
Makes nutrition tracking so much easier
LillianZW
Great nutrition tracking app with intuitive UI design and features that allow you to tailor it to your specific goals — makes it very quick and easy to keep track of calories and macros
Best AI calorie tracker I’ve used!!!
chronicallycurious
Tracking nutrition has never felt this seamless. It’s genuinely helped me on my fat loss journey.I’ve tried a bunch of apps, Yazio, Lifesum, Cal AI, SnapCalorie, MyFitnessPal……. and this one is easily the best.The UI/UX is beautiful and minimalist, and the AI is more accurate than the other apps. Plus, it’s free to use for 3 meals a day, which is enough for me!
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.
Version 1.11.0
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
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
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.