Android

TouchDroid turns an Android device into a touchpad for controlling a laptop over a Wi-Fi connection.

Breni turns subjects into structured courses with graded tiers and hands-on labs that learners can complete on mobile devices.

Android-x86 ports the Android Open Source Project to x86 computers, allowing Android to run on a PC.

Combine four starting elements to discover new items in the Little Alchemy browser game.

BatteryTool stops background apps that are running in the background, providing an Android utility aimed at reducing battery use.

Calistree provides calisthenics and home workout exercises, routines and training plans, with an exercise library.

DoNotNotify manages Android notifications and is designed to keep sensitive notification content private.

Serve files from a directory over UPnP DLNA with DMS, a media server that includes basic video transcoding.

The Trolley Problem Game presents the classic moral dilemma as an interactive game.

The jidoujisho mobile suite provides tools for learning languages through media and immersion.

OSS Document Scanner provides document scanning on Android through an open source mobile app.

Kitco publishes live gold and silver prices, charts, metals news, mining coverage, and market information across several asset classes.

Track cryptocurrency prices, market capitalization rankings, and charts with CoinCap.

Metadata Remover deletes image metadata on Android, helping remove embedded information from photos.

Transportr supports public transport use through an open-source app developed by contributors around the world.

Al-Mustaqbal University offers academic programs in medical, engineering and humanities disciplines.

Scan QR codes online using a camera or uploaded image, with no app installation required.

TangoShare transfers files between devices peer to peer with end-to-end encryption, without accounts or registration.

TranslateYou offers translation across more than 150 languages and several translation services in a privacy-focused Android app.

NekoBox for Android is a sing-box universal proxy toolchain, with documentation and download links for the Android app.

SafeSpace stores information in app-specific internal storage, with the project providing an Android APK for installation.

Transcribro offers private, on-device speech recognition through an Android keyboard and speech-to-text app.

Slang.net, formerly Slangit.com, is an online slang dictionary with daily entries, a recently added list, blog posts, and iOS and Android apps.

Orgzly Revived is an Android outliner for notes and to-do lists, with org-mode notebooks that can sync to storage services.