
Carbium: Net Carb Tracker
Keto and low-carb food diary
0 ratings
Free
In-App Purchases
About
Carbium counts net carbs and calories using published formulas and a food databas.. No account, no AI, nothing to sign up for.
NET CARBS, NOT TOTAL CARBS
Total carbohydrates minus dietary fiber. Your body does not break fiber down into glucose, so it does not raise blood sugar. Carbium does the subtraction on every food and shows you the arithmetic.
LOG IN SECONDS
Search, scan a barcode, repeat a saved meal, or enter a custom food. Recents log again in one tap. Portions in grams or cups, sorted into breakfast, lunch, dinner and snack.
THE DATABASE IS IN THE APP
Thousands of generic whole foods from USDA FoodData Central ship inside Carbium, so search works in a basement, on a flight, anywhere. Packaged products are looked up by barcode through Open Food Facts. Nothing you search for leaves your phone.
WHAT YOU ACTUALLY BURN
Carbium Pro compares what you logged against how your weight really moved, then reports your measured energy expenditure. Below roughly two weeks of data it says so plainly and uses the Mifflin-St Jeor formula instead. It also ignores your first ten days of weigh-ins, because early low-carb loss is mostly water and counting it would hand you a target that stalls you.
THE TREND, NOT THE NOISE
Daily weight is mostly water. The chart draws a smoothed trend through it with your raw weigh-ins behind, so one bad morning does not read as failure.
PLAN THE WEEK
Carb cycling without the arithmetic. Give each weekday its own net-carb target and the app applies it, so a training day and a rest day are not the same day.
FREE IS A COMPLETE TRACKER
Unlimited logging, barcode scanning, the whole built-in database, your daily targets, weight logging, 7 days of history and 1 saved meal. Nothing expires.
Carbium Pro adds the analysis: adaptive TDEE, the weight chart and smoothed trend, unlimited history, the weekly carb plan, unlimited saved meals and CSV export.
YOUR LOG IS YOURS
Everything lives on your device with a backup in your own iCloud, so a lost phone does not cost you your history. There is no account, no analytics, and nothing for us to collect. Barcode scans send the barcode digits to Open Food Facts and nothing else.
Carbium is a food diary and a calculator, not medical advice. Its targets are general estimates from standard formulas and the details you enter, and nutrition data may be incomplete or inaccurate. Talk to a doctor or a registered dietitian before making significant changes to your diet.
Requires iOS 17 or later.
SUBSCRIPTION TERMS
Carbium Pro is an auto-renewing subscription: $2.99 weekly, $9.99 monthly or $59.99 yearly, charged to your Apple Account at confirmation of purchase. It renews automatically for the same period and price unless auto-renew is turned off at least 24 hours before the current period ends. Manage or cancel any time in your Apple Account settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://xlconcepts.ca/carbium/privacy/
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What's New in Carbium
1.0
August 4, 2026
Subscription plans
Carbium Pro Monthly
Adaptive TDEE, weight trend and unlimited history.
$9.991 Month







