Lithos Support

We're here to help. Browse the FAQs below or get in touch.

Frequently Asked Questions

How accurate is the rock identification?

Lithos uses GPT-4o Vision for high accuracy, but AI identification has limits. Results are best treated as an educated starting point. For confirmation of rare or valuable finds, consult a geologist.

How many free scans do I get?

Free users get 3 scans per day. The count resets at midnight (device local time). Lithos Premium removes the daily limit entirely.

How do I cancel my subscription?

Open the Settings app on your iPhone → [Your Name] → Subscriptions → Lithos → Cancel Subscription. Cancellation takes effect at the end of the current billing period.

Can I restore a previous purchase?

Yes. Go to Settings → Manage Subscription and tap "Restore Purchases".

How do I delete my account?

In the app: Settings → Delete Account. This permanently deletes all your data including photos and scan history.

What data does the app collect?

See our Privacy Policy for full details. In short: anonymous ID, photos you scan, and identification results. We never collect your name or email.

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