Out of nowhere, Google has released a Samba client for Android. The app is pretty barebones, but it gets the job done.

Android has a few great VNC apps, and a few not so great. If we had to pick the best, we'd choose PocketCloud for how insanely easy to use it is. PocketCloud Platform: iOS/Android and Windows/Mac ...

The Outline Client application is available for Android, Windows, Chrome, iOS, macOS, and Linux. Open the application and use the access key to connect to the server.