Support

Enter meal and activity calories manually, follow your daily budget, and use Flex and Joker days. Premium is an optional subscription for AI estimates and the Assistant.

Enter your own daily budget or use the app’s optional starting estimate. The estimate uses the details you provide, your usual activity and your chosen weight-loss pace. It is an approximate starting point. You can change your budget in settings; changes take effect the following day.

When you confirm a completed day’s entries during the following day, unused budget increases your Flex balance and an overage reduces it. If the balance is negative, unused budget from later days clears that balance first. Flex stays separate from the next day’s base budget.

You can activate a Joker day when your confirmed Flex balance covers the calorie cost shown in the app. That calorie cost is deducted from your balance. You do not need to log meals or activity, and the day adds no further surplus or deficit. It applies to the current day.

Yes. You see the meal or activity calories before saving and can adjust them. AI estimates can be inaccurate. You can always enter calories you know manually.

On iPhone, manage your subscription in Settings → your name → Subscriptions. On Android, open Google Play subscriptions using the Google account you used to buy Premium. Select Calotank to manage or cancel the subscription. Uninstalling the app does not cancel it. If an active subscription is missing in Calotank, use Restore purchases in the app.

Calotank stores your entries locally on your device and does not synchronize them to a Calotank account or its own cloud database. Your device backup may include app data, depending on your backup settings.

Calotank does not require an account. Delete local meals, activities, weights, goals and settings on this device by opening Settings → More settings → Data → Delete all data, then confirm with Delete all. You cannot undo deletion in the app. Copies in earlier device backups are managed separately through your device backup settings.

Yes. Email calotankapp@gmail.com with the subject “Calotank data deletion”. Include your platform, approximate date of the request or purchase and a transaction or order identifier if available. We process a verified request without undue delay, normally within 30 days.

AI features process the photo, text or daily context you send them to produce a response. Calotank does not store the AI response with OpenAI for later retrieval. OpenAI may still retain request and response content in safety and abuse-monitoring logs for up to 30 days, or longer in exceptional cases. RevenueCat retains an app-specific pseudonymous purchase identifier and purchase history to verify Premium. Read the privacy policy for full details.