miUnlock

Blow or shake your smartphone to unlock it

Swapps!

Switch from one application to another very easily

GMD Gesture Control

Configure gesture control actions for your Android

Quick Reboot

Create shortcuts to the operating system's reboot

Hovering Controls

Control your Android without touching the screen

Magus

Use your phone with 3D gestures

Google BrailleBack

Adapt an Android for the blind

utter!

Control your Android with voice commands

Nova Launcher

Customize your Android with one of the best application launchers

Apex Launcher

One of the most powerful launchers

Pressy

A button for all your phone's functions

Firefox OS

Mozilla's official launcher that emulates Firefox OS

Twisty Launcher

Your application launcher specialized in gestures

Air Swiper

Control your Android without touching the screen

AAAD

Install unofficial applications for Android Auto

XOS Launcher

Nice customizable launcher for Android

HiCare - Huawei

Huawei post-sales service app

Rock Identifier

Identify rocks and discover the rocks around you

wikiHow

Consists of tens of thousands of explanatory tutorials

Instructables

All the tutorials you can think of

Shroomify

Discover all the secrets of mushrooms

Wikipedia

The biggest reference work in the palm of your hand

Picture Insect

Insect identifier for cell phones

iFixit

An all-purpose repair manual

Infocar

Digital car diagnostic tool

Samsung Members

Make the most of your Samsung device

Plant Care Reminder

Learn to take care of your plants

ElectroDroid

Resources for electronics professionals and enthusiasts

Kiwix

The offline version of Wikipedia on your phone

Plant App

Learn to identify and care for plants

Google Arts & Culture

Google brings art to your smartphone