Rotation Manager

Set app specific orientationsGPL-3.0-only

Rotation Lock + Landscape

Stop screen auto-rotationGPL-2.0-only

Pijaret

Encrypt text by rotationGPL-3.0-only

Earth Live Wallpaper

Rotating planets wallpaperGPL-3.0-only

Mars Live Wallpaper

Rotating red planetGPL-3.0-only

LLCrop (loss less)

Loss Less Cropping and Rotation: Remove unwanted parts of jpg photo without qualGPL-3.0-or-later

Tap 'n' Turn

Confirm before the screen orientation gets appliedGPL-3.0-only

Materials Live Wallpaper

A live wallpaper that renders materialsGPL-3.0-only

Auto Auto-Rotate

Automatically remembers your auto-rotate setting for every appGPL-3.0-only

AiCiA

IRC clientApache-2.0

Port Knocker

Port knocker client; supports one time sequencesMIT

Effects Pro

Apply filters to imagesMIT

3D Model Viewer

Load 3D Models and see how to do itMIT

mTPMS

Read tire pressure sensorGPL-2.0-or-later

Planetario

Solar System in your PhoneBSD-2-Clause

SatStat

GPS, sensor and network statusGPL-3.0-or-later

QuickTiles

Android Quick Settings TilesGPL-3.0-or-later

SSTV Encoder

Image encoder for Slow-Scan Television (SSTV) audio signalsApache-2.0

Easy Watermark

Securely, easily add a watermark to your sensitive photos.MIT

Key Mapper

Unleash your keys! Open source!GPL-3.0-only