Comfort Reader

Streams text directly to your eyesGPL-3.0

Comics Reader

Comic and image viewerGPL-3.0

Commons

Upload images to wikimedia.orgApache-2.0

CommonsLab

Browse and contribute Wikimedia CommonsMIT

CommonsLab

Browse and contribute Wikimedia CommonsMIT

Compass

Graphical compassApache-2.0

Compass Keyboard

International keyboardBSD-3-Clause

Complica4

Puzzle gameGPL-3.0

Computational Demonology

Battle Lovecraftian horrors with this set of algorithmsGPL-3.0+

Concurseiro

Helps you studyingGPL-2.0+

ConnectBot

SSH and local shell clientApache-2.0

Contact Owner

Contact info on lock screenLGPL-3.0

Content Provider Helper

Discover, view and query data of content providersGPL-3.0

Conversations

Chat using the XMPP networkGPL-3.0

Cool Reader

E-book readerGPL-2.0

Copy to Clipboard

Copy via the share menuGPL-3.0

CosyDVR

Video recording (DVR) software for in-car useGPL-3.0

Counter

Tally counterApache-2.0

Critical Maps

Critical mass location sharing and chatApache-2.0

Critical Velocity

Side scrolling arcade style gameApache-2.0

crond

Schedules scriptsMIT

Crossword

Simple crossword solverGPL-3.0

CrossWords

A Scrabble-like gameGPL-2.0

Cryptfs Password

Disk encryption password changerApache-2.0

CryptoPass

Strong passwords for different websites using a single secret keyMIT

CS Teaching Labs

Check availibilty of computers at CDFLabsMIT

cSploit

Network analysis and penetration toolkitGPL-3.0+

CuprumPDF

View PDF filesApache-2.0

Currency

Currency conversionGPL-3.0

Cythara

Guitar tunerGPL-3.0