- `DAVDroid <https://davdroid.bitfire.at/>`_ - Sync contacts/calendar

- `Etar <https://github.com/xsoh/Etar-Calendar>`_ - Calendar

- `F-Droid <https://f-droid.org/>`_ - Collection of FOSS apps

- `Hermit <https://hermit.chimbori.com/>`_ - Turn websites into light apps

- `K-9 Mail <https://github.com/k9mail/k-9>`_ - Email client

- `Keepass2Android <https://play.google.com/store/apps/details?id=keepass2android.keepass2android>`_ - Password manager

- `Magisk <https://forum.xda-developers.com/apps/magisk>`_ - Systemless root

- `MiXplorer <https://labs.xda-developers.com/store/app/com.mixplorer>`_ - File manager

- `mpv <https://github.com/mpv-android/mpv-android>`_ - Media player (Add <https://apt.izzysoft.de> as a repository if you want to install from F-Droid)

- `NewPipe <https://github.com/TeamNewPipe/NewPipe>`_ - Youtube front-end

- `oandbackup <https://github.com/jensstein/oandbackup>`_ - Backup manager

- `Orgzly <http://www.orgzly.com/>`_ - Notepad/Outliner

- `redditisfun <https://www.talklittle.com/reddit-is-fun/>`_ - Reddit client

- `XDA Labs <https://www.xda-developers.com/xda-labs/>`_ - App for xda formus, apps, etc.

- `YAATA <https://play.google.com/store/apps/details?id=rpkandrodev.yaata>`_ - SMS app