Feature

Barcode scanner: exact nutrition from the label, instantly

For packaged food, guessing isn't necessary — the label already has the exact numbers. Theron's barcode scanner reads any packaged product barcode and pulls calories, protein, carbs, and fat straight from the manufacturer's data, logged in one scan.

Try the barcode scanner free

Why barcode data beats AI estimation for packaged food

AI photo recognition is built for plated, mixed meals where there's no label to read. Packaged food is different — the exact nutrition facts already exist, printed on the box. Scanning the barcode is faster and more precise than photographing the package, because it pulls verified manufacturer data instead of estimating.

How barcode scanning works

Step 1

Open the scanner

Same in-app camera used for AI food scan, switched to barcode mode.

Step 2

Scan the barcode

Point the camera at the barcode printed on any packaged product.

Step 3

Confirm the serving size

Set how much of the product you're eating — the app calculates macros for that exact amount.

Step 4

Log it

The entry adds to your daily macro and calorie total immediately.

Exact, not estimated

Nutrition data comes from the product label, not a visual guess.

Faster than searching

No scrolling through a food database looking for the right brand and variant.

Works with any packaged product

Snacks, drinks, supplements, pantry staples — anything with a barcode.

Consistent portion math

Serving size adjustments scale macros automatically and correctly.

Who uses the barcode scanner

People tracking strict macros

Anyone hitting a specific daily target where label-level accuracy matters.

Grocery shoppers

Quickly check a product's macros while still in the store, before buying.

Meal-prep users

Log the same packaged staples repeatedly without re-searching each time.

Related features

→AI food scan: log a meal in one photo→Macro & calorie tracking that updates in real time→Custom goals with macros that recalculate automatically
FAQ

Barcode scanner — common questions

Does the barcode scanner work on all products?▾
It works on any packaged product with a standard retail barcode. For fresh, unpackaged, or restaurant food, use the AI food scan instead.
How is this different from the AI food scan?▾
The barcode scanner reads exact label data for packaged products. The AI food scan visually estimates plated meals that don't have a barcode to read.
Can I save frequently scanned products?▾
Yes, previously scanned products are saved to your history so repeat items log even faster next time.
Contact

Get in touch

Questions about Theron, partnership inquiries, or just want to say hi — we respond within 24–48 hours.

Generalsupport@theronapp.com
Demosupport@theronapp.com
Instagram@theronapp
TikTok@theronapp

0/2000