Android mobile phones are a great way to start your Private Cyberspace with. As they allow you do more than most iOS phone (e.g. collecting wifi and bluetooth signals around you).
Unfortunately the trend is for Android to start to close up those capabilities as well, although it is still giving you (the device owner) substantially more capability that iOS, so should be your preferred mobile device.
Your main user interface into your Private Cyberspace is the Web Console through the Web Browser on your phone. Due to its wide availability Google Chrome is the reference web browser on Android phones, although other browsers can also be used.
Accessing the web console is as simple as visiting the https://app.88.io web site.
The lack of web browser's ability to access some mobile phone resources, mean native mobile apps are required in some cases.