Support

We're here to help you get the most out of Banknote & Coin ID. Email us at tqtechofficial@gmail.com.

Common questions

Identification isn't working

Make sure you're connected to the internet — identification needs a network connection. Crop tightly to the note or coin, keep it flat, and avoid glare. If you see an error, tap Identify again. History and your collection still work offline once saved.

Camera or gallery issues

Grant camera permission in Android Settings → Apps → Banknote & Coin ID → Permissions if capture is blocked. You can always pick a photo from your gallery instead. Use even light and fill the crop box with the item.

“Not a note or coin”

The identifier refuses images that do not look like currency. Try a clearer photo, crop closer, or switch Note / Coin mode on Home before you scan.

Free scans used up

Free accounts include three lifetime identifications, counted on the server so they survive reinstall. Upgrade to Pro from the paywall or Settings for unlimited scans. Collection export still works on the free plan.

Pro & subscriptions

Subscribe from Settings or the paywall. Billing is handled by Google Play (weekly or yearly). To cancel or change plans, open Google Play → Payments & subscriptions. Use Restore on the paywall if Pro doesn’t unlock after reinstall.

Values look locked or wrong

Collector value ranges are a Pro feature. They are market estimates by grade, not appraisals — ordinary circulating pieces often have no collector premium. Low confidence means the photo was hard to read; retake with better light or add the other side.

Delete my collection

Remove items in Collection or History, or uninstall / clear app data in Android Settings to remove local history and preferences. An exported backup is a file you created — delete it separately if you no longer want it.

More contact options →