System

NotificationLog
Logs system notifications

NC Passwords
A password manager app for Nextcloud's Passwords app

SmartPack-Kernel Manager
The Ultimate Tool to Manage your Kernel

ProximitySensorFix
simple fix for during call proximity sensor issues

Unlauncher
Freedom from your phone - a clean and simple Android launcher experience!

Coffee
Keep display awake

Media Merger
Merge media files, open-source

Aurora Droid
An alternative to the default F-Droid app

SAI
SAI lets you install and export split APKs

HTTP Request Shortcuts
Create home screen shortcuts that trigger arbitrary HTTP requests

UnApkm - Convert APKM to APKS
Decrypt Apk Mirror's APKM files and save them as APKS

Simple SMS Messenger - Manage messages easily
An easy and quick way of managing SMS and MMS messages without ads.

Screenshot Tile [No root]
Quickly take screenshots from the quick settings panel

QuickTiles
Android Quick Settings Tiles

Limpazap
Clean old WhatsApp backups

Keikai Launcher
A fast, minimalistic and lightweight search-based launcher

Smart Flasher
A simple tool to make flashing recovery zips much easier!

Simple File Manager Pro
A simple file manager for browsing and editing files and directories.

kDI Device Info system permission
GSF, Widevine L1/2/3, Treble & A/B device infos (+other IDs)

Clipboard Cleaner
Check and clean your clipboard

SimpleSSHD
Easy to use SSH server

Editor
Simple generic text editor

AdAway
AdAway is an open source ad blocker for Android using the hosts file.

SecondScreen
Better screen mirroring

EteSync - Secure Data Sync
Secure, private and end-to-end encrypted calendar, contacts and tasks sync

Simple Dialer - Manage your phone calls easily
A handy phone call manager with phonebook, number blocking and multi-SIM support

SetEdit - Settings Database Editor
Open source version of the 4A Settings Database Editor

Material Flashlight
Flashlight with some cool features

KDE Connect
KDE Integration

Insular
Isolate your Big Brother apps