This is a fraud. It charged my credit card twice and won't unlock the software. Demanding immediately a refund.
Developer reply
We’re sorry to hear about your experience. Our app does not process payments directly — all transactions are handled securely through Google Play. It’s possible there was a temporary glitch during purchase. Please contact us at supportagent9@icloud.com with your order ID so we can help you verify the payment & ensure your issue is resolved quickly.