Transdroid works pretty well. It's not the most up-to-date app, but it gets the job done. It supports multiple torrent applications including qBittorrent and it's fully open source.

[–] mankeulv@lemmy.latrans.cloud 2 points 1 year ago

Second this, it's my daily driver on android to control my qBittorrent instance, and so far I haven't missed any kind of functionality, it just does everything I need.

[–] clmbmb@lemmy.dbzer0.com 4 points 1 year ago

For basic tasks (uploading a torrent, changing download path, etc) I use qBittorrent Manager and it's pretty good.

[–] jws_shadotak@sh.itjust.works 1 points 1 year ago

nzb360 is not FOSS but the dev is awesome and a great person to support.

It's more for full *arr stack management but qBit is in there as well.

[–] rurutheguru@lemmings.world 1 points 1 year ago

qBitController (Control qBittorrent from your Android device) https://f-droid.org/packages/dev.bartuzen.qbitcontroller/