You can request a direct download link by sending a blank email to get@psiphon3.com. This is the safest way to ensure you are getting an authentic, untampered version.
You can start using the service immediately without creating an account. How to Install on Android 4.0 download psiphon for android 4.0
This platform maintains an extensive history of older versions specifically for users with compatibility issues on older architectures. Key Features for Legacy Devices You can request a direct download link by