Privacy Policy

Last updated: March 1, 2026

1. Our Privacy Commitment

ArCal ("Ai calcorie counter") is built with privacy at its core. We believe your health data belongs to you and only you. This Privacy Policy explains what data we collect, how we use it, and the choices you have.

The short version: We collect almost nothing. Your food data stays on your device. No account required. No login. No personal information stored on our servers.

2. Data Storage — Local First

ArCal is an offline-first application. All food entries, nutrition data, meal history, personal goals, and preferences are stored locally on your device using an on-device database.

• No user accounts or profiles stored on our servers
• No email, name, or personal identifiers collected
• Uninstalling the app removes all local data (unless you create a backup)

2.1 Cloud Backup

When you claim your daily Energy, ArCal automatically syncs a compact backup of your food history to our servers. This includes:

• Food entry text data (food name, calories, nutrients, meal type, timestamp)
• Custom meals (recipe name, ingredients, nutrition data)
• Small thumbnail images (~40-80 KB) with nutrition metadata after AI analysis
• Health profile (gender, age, weight, height, activity level)
• Nutrition goals (calorie goal, macro targets, meal budgets, cuisine preference)
• AR Scale data (detected object labels, bounding box coordinates, image dimensions, pixel-per-cm calibration ratio)

Full-resolution food photos and your name/avatar are never uploaded. All synced data is identified by an anonymous hashed device ID — not linked to your personal identity. You can restore your food history on a new device using a Recovery Key.

2.2 Anonymized AI Training Data