When I have purchase FreeFPV Rider and get link to download for Linux, Windows, iOS, but not Android. I meant to get it for Android, is there other links for me to download it for Android?

The Android version is available on the Google Play store only:

https://play.google.com/store/apps/details?id=com.Freeride.Freerider

There is also a free trial that you can use to see if it works on your device:

https://play.google.com/store/apps/details?id=com.Freeride.Freerider_FREE

1. Compre la version full y la descargue para windows,  tengo que pagar por la verision full para android?

Sí, la versión de Android está separada, que debe comprarse por separado.