If you want the authentic Cubase experience on Android, the official mobile application is . Review: Cubasis 3 (The Official Android Version)
First, let's look at the "Cubase 5" part of your search. It was a landmark release at the time, but it is not and has never been available for Android .
To download them, you only need to have the Google Play Store app on your Android device and search for these exact names.
Understanding the reality of these download links will protect your device from security risks and guide you toward legitimate mobile music production alternatives. The Reality of Cubase 5 Android APKs
Steinberg created a dedicated mobile version of Cubase called . It is built from the ground up for touchscreen devices.
Available directly through the official Google Play Store.
Keep in mind that:
: Run your projects on a 32-bit floating-point audio engine with support for audio sample rates up to 96 kHz.