Support for Purchase Issues

If your in-app purchase did not unlock correctly, a payment was processed but content did not appear, or you experienced a billing-related issue, please contact us directly so we can review the case.

Other supported topics

You can also use this page if you are having problems with MIDI device detection, Bluetooth MIDI discovery, paired-device connection, or Drive-based MIDI and preset import/export workflows.

How to contact support

Send an email to support@synthze.app and briefly describe the issue.

What to include

• Your device model and Android version
• The email address used on Google Play, if relevant
• The date of the purchase attempt
• The name of the item or feature you tried to purchase
• A screenshot of the receipt, error, or purchase screen if available
• If relevant, the MIDI device name, Bluetooth state, Drive action, or import/export step where the problem occurred

Response scope

We can help investigate purchase status, missing unlocks, and app-side activation issues. If the problem is directly related to billing or refund processing on the store side, we may also guide you toward the appropriate Google Play support channel.