Been using WiFi Pro FTP Server for a couple months now. It’s basically an app that lets you set up your own FTP server right on your Android device. Pretty solid if you’re into file sharing and transferring stuff over WiFi.
Here’s what you do: you can connect to the FTP server from any computer or device on the same network and then transfer files, photos, videos, whatever you need. There’s also support for FTPS (FTP over SSL) if you want more security. And you can customize the home folder, user accounts, and other settings – took me a while to figure that stuff out but it’s useful.
Look, if you’re always needing to move files between your phone and other devices, you’ll probably like this. It’s not perfect – the ads can get a little annoying if you don’t pay for the pro version – but overall it does the job. Worth checking out.