There's an overwhelming number of file managers on the Google Play Store, but a good chunk of those are riddled with ads, ...

That said, if you do manage files on your Android phone, you'll quickly realize that most Android file managers are quite limited in functionality. Open source software may not always be the best ...

When it comes to smartphones, you're more likely to think of standards such as wifi, Bluetooth, and NFC (Near Field Communication) before the old FTP (File Transfer Protocol) technology comes to mind.