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Simply, press the "settings" button then turn off the “notification sound fx" off
As of now we don't provide the paid version via other methods but we would like to do so in the near future.
Yes, just make sure you use the same gmail account used originally to make the purchase. Please note you can not transfer purchases from one gmail account to another. If you still have issues please send us an email at support@xiialive.com or contact your phone carrier.
In most cases this is because your payment was rejected or has not yet been approved by Google Checkout. We recommend that you check your order status on your Google Checkout account. Also, a common issue is slow network speed.
Moving already installed apps to the SD card can break some things such as the widget. In order to fix this particular issue with the widget you will need to:

1. Remove broken widget
2. Restart phone
3. Add widget again
Paid version has no ads. This seems very strange to us. Please make sure that you are opening "XiiaLive" and not "XiiaLive Lite"

*XiiaLive Paid and Free are two different apps that can be on the phone at the same time. I would suggest uninstalling the free version to avoid confusion.