System

OpenBoard
An opensource keyboard that does not spy on you!

open2share
Enable sharing files from every app (like WeChat)

Backup (Privacy Friendly)
(SECUSO) Backup Application for Privacy Friendly Apps

Clipeus
Clipboard cleaner

Conscrypt Provider
Conscrypt Provider provides TLS 1.3 to apps supporting older Android devices

Battery Tool | Hibernate Unused Apps
Automatically stop apps running in the background. Free, no ads and open source.

Share to Clipboard
A way to copy to clipboard straight from the share menu!

PilferShush Jammer
Block unwanted use of onboard microphone

Material Flashlight
Flashlight with some cool features

dahliaOS Calculator
Perform basic calculations

RustDesk
An open-source remote desktop application, the open source TeamViewer alternativ

FlorisBoard
An open-source keyboard which respects your privacy. Currently in early-beta.

FreezeYou!
Light weight app freezer without ROOT

link eye
open url with your preffered app

F-Droid Classic
F-Droid client with the classic UI

Plexus
Android app for Plexus

Key Mapper GUI Keyboard
The official companion keyboard for Key Mapper.

ClassyShark3xodus - Scan apps for warnings
Checks apk(s) for known trackers (provided by Exodus) +other warnings and specs.

kDI Device Info system permission
androidSpec(s); GSF, Widevine L1/3, microG, Treble, A/B device infos (+otherIDs)

Pixel Filter
Screen dimmer, which disables individual pixels, for AMOLED screens

Easer
User-defined explicit automation for Android

DeadHash
Hashsum calculation utility

Media Merger
Merge media files, open-source

Aodify
Show AOD on demand

ADBio
Widget that enables/disables the Android Debug Bridge (ADB)

Limbo x86 PC Emulator
A QEMU-based emulator

WyFy
Wi-Fi change state adapter

DEfO ECH Apps
Experimental fork of F-Droid to use TLS ECH with Cloudflare as the default host

BusyBox
Install a compact but feature-complete version of basic Linux command line utils

CalEF (Calendar Entry Formatter)
Create and send Appointment-Confirmation-Message from Android-Calendar-Entry.