App Instructions.
Everything you need to get started: from creating an account, through the AI label scanner, to the HOMA-IR calculator and your metabolic focus.
Čisto gorivo
Smiri tihu upalu i vrati kontrolu nad svojim metabolizmom.
Biohemijski skener
Skeniraj barkod i saznaj tačan insulinski odgovor namirnice. Bez nagađanja.
SKENIRAJ
HOMA-IR kalkulator
Proveri stanje svog metabolizma i prati napredak.
Metabolizam
HOMA-IR meri ravnotežu između šećera i insulina. To je tvoj kompas za čisto gorivo.
5,1
12,5
Skener
Fotografiši sastojke. Naš AI otkriva biohemijske okidače upale.
Korisnik
Registration & Account
To use all app features, you need a free account. Here is how to create one in under a minute:
- 1
Download the app
Bez zrna is available on the App Store (iOS) and Google Play (Android). Search for "Bez zrna" and install the app.
- 2
Create an account
Register by entering your name and e-mail address, or sign in with one tap using your Google or Apple account. Your data is used exclusively to run the app and is never shared with third parties.
- 3
Choose your metabolic focus
After registration, open Profile Settings and select your focus (e.g. gluten-free, insulin resistance). The focus determines how the AI scanner evaluates ingredients, and you can change it at any time.
- 4
You're ready
After registration you can immediately use the scanner, calculator, and recipes. You can delete your account at any time in Profile Settings via the "Delete account" option.
Tip: One account belongs to one user. Sharing an account across multiple devices to bypass limits is not allowed.
AI Label Scanner
The most powerful feature of the app: point your camera at a product's ingredient label and find out within seconds whether the product fits your focus.
- 1
Open the scanner
Tap the scanner icon on the app's home screen.
- 2
Allow camera access
On first use, the app will ask for camera permission. The camera is used exclusively for scanning labels.
- 3
Photograph the label
Take a photo of the ingredient list on the back of the product. Make sure the text is legible, flat, and well lit — this significantly improves analysis accuracy.
- 4
Read the result
The AI analyzes the ingredients in real time and gives an assessment based on your metabolic focus: which ingredients to avoid and why.
Privacy: Photos are processed in real time over an encrypted connection and deleted immediately after analysis. They are not stored on your device or on our servers.
Free accounts get a total of 5 free scans. To keep using the scanner, a Premium subscription is required.
HOMA-IR Calculator & Focus
The HOMA-IR index is a quick check of metabolic health based on fasting blood glucose and insulin values.
- 1
Prepare your lab results
You need two fasting blood values (taken in the morning, before eating): glucose and insulin.
- 2
Enter the values
The calculator supports multiple units — glucose in mmol/L or mg/dL, insulin in mIU/L, µIU/mL, or pmol/L. Select the unit shown on your lab report.
- 3
Calculate the index
Tap "Calculate index" and you instantly get your HOMA-IR result with a color-coded assessment.
- 4
Interpret the result
A value up to 2.0 is considered optimal, between 2.0 and 2.9 is the borderline zone, and above 2.9 indicates possible insulin resistance.
What is a metabolic focus?
Your focus is a personal nutrition profile you choose in your profile settings (e.g. gluten-free or insulin resistance). It determines the "lens" through which the AI scanner evaluates ingredients — the same product can be fine for one focus and problematic for another. You can change your focus at any time.
Important: The HOMA-IR result and scanner assessments do not constitute a medical diagnosis. For interpreting lab results and any change in therapy, always consult your doctor or endocrinologist.
Ready to start?
Download the app and take the first step toward better metabolic health.
Have a question or need help? Write to us at
info@bezzrna.rs