[rayalez]

- Good audiobook player

- Good ebook reader

- Good text editor

- Video player

- Torrents downloader

- Mindmapping app

- IRC app

- Wikipedia app

- Game of Go.

- Pomodoro(productivity)

If you're considering tablet apps - then also something for painting, like procreate.

[kornakiewicz]

Do you really use torrents on mobile phone?

[rayalez]

Yes, and it is surprisingly convenient.

[kornakiewicz]

For what usage, if you have time to answer? Only things I need from torrents are TV series unavailable in my country, sometimes Linux distro.