# Important Notice: Android App Compatibility

The new Beta version of the Android app is not compatible with the old (stable) version.
Likewise, the old version is not compatible with the Beta version.

- If you want to use the Beta version, uninstall the old version and download the Beta Android app from:
  https://rbsoft.org/downloads/sms-gateway/sms-gateway-beta.apk
- If you prefer the Stable version, uninstall the Beta version and download the Stable Android app from:
  https://rbsoft.org/downloads/sms-gateway/sms-gateway.apk

To avoid issues, please ensure you uninstall the version you are currently using before installing the other.

## Customize Android Application

You can create a customized version of the Android app using our build server.

1. Create an account by using your purchase code here:
   https://app-builder.rbsoft.org/register
   (You can skip this step if you already have an account.)
2. After registering, login to the account you just created and follow the step-by-step video tutorial:
   https://youtu.be/NyC0Ipji5_s

- For the Stable version, choose SMS Gateway Legacy as the Project on the build server.
- For the Beta version, choose SMS Gateway.

Thank you for your understanding.