List of free and open-source Android applications

Most Android phones, like the Nexus S, allow installation of applications from the Play Store, F-Droid store or directly via APK files

This is an incomplete list of notable applications (apps) that run on the Android platform which meet guidelines for free software and open-source software. For a more extensive list of apps, see the External links section below.

Communication

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
AdAway	Ad blocker	website	page	No	Yes	github	GNU GPLv3
Adblock Plus	Ad blocker	website	page	No	Yes	github	GNU GPLv3	L7 / 2.1+
APG	OpenPGP and key management	website	list	Yes	Yes	github	Apache 2.0	1.5+	Integrates with K-9 Mail. OpenKeychain available as more up-to-date alternative [1]
ConnectBot	SSH, telnet, and terminal emulator	website	list	Yes	Yes	google	Apache 2.0	1.5+
Chromium	Web browser using Blink engine	website		Non-free	No	git			Available with additional proprietary components as Google Chrome
CSipSimple	SIP & VoIP client	website	list	Yes	Yes	svn	GPLv3	1.6+
Firefox for mobile	Web browser customizable with add-ons, uses Gecko engine.	website	list	Yes	Yes	mercurial	MPL	2.2+	Planned to be removed from F-Droid; "Fennec" dev builds also available at F-D.[2]
I2P	Anonymizing network layer	website	apk list	?	Yes	github list	Apache 2.0	2.3+	Alpha release; do not rely upon it for strong anonymity. I2P also maintain their own F-Droid repo.[3]
Jitsi	Videoconferencing and instant messenger	website	list	No	No	zipballs github	LGPLv2.1	?	Android version is experimental Alpha release.
K-9 Mail	Advanced email client	website	list	Yes	Yes	github	Apache 2.0	2.2+	Supports OpenPGP integration with APG or OpenKeychain
Linphone	Video SIP/VOIP client	website	list	Yes	Yes [4]	git	GPLv2	2.2+
Orbot	Client and proxy for Tor anonymity network	website	apk	Yes	Yes	git	BSD/GPL	1.6+
Signal	Encrypted voice calling and instant messaging	website		Yes [5]	No	github	GPLv3		Also available for iOS
Sipdroid	SIP/VoIP client	website	list	Yes	Yes	svn	GPLv3	2.0+	works on 1.5
Telegram	Client for proprietary messaging platform	website	?	Yes	Yes	github	GPLv2	2.2+	F-Droid build is based on forked repo [6]
WordPress	Official WordPress client	website	?	Yes [7]	Yes [8]	github	GPLv2	2.3+

Emulators

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
ScummVM	Emulates multiple gaming engines	website	apk	Yes	Yes	svn	GPLv2	1.5+
RetroArch	Emulates multiple platforms	website	list	Yes	No	github	GPLv3	2.3+
VICE	Commodore hardware	website	list	Yes	No	svn	GPLv2
Dolphin	Nintendo GameCube and Wii	website	apk	Yes	Yes	github	GPLv2+	4.0+	Requires device with support for OpenGL ES 3 or above
DeSmuME	Nintendo DS emulator	upstream android	list	Yes	Yes	git	GPLv2	2.3.3+	Port to Android as nds4droid
Mupen64Plus	Nintendo 64 emulator	upstream android		Yes [9]	Yes [10]	github	GPLv3	2.0+	Unofficial port as Mupen64 Plus AE.
PPSSPP	PlayStation Portable	website	apk	Yes	Yes [11]	github	GPLv2+	2.3+

Games

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
2048	Mathematics sliding block puzzle	website		Yes [12]	Yes [13]	github	MIT	2.2+	Port of 2048
Battle for Wesnoth	Turn-based strategy game in a fantasy setting	upstream android sourceforge	list	Partial	No	tarballs	GPLv2	?	Ported to Android with SDL
Dungeon Crawl Stone Soup	Rogue-like	website		Yes	No	git	GPLv2+		Text-based version also available [14]
Fish Fillets NG	Underwater puzzle game.	website		Yes	No	tgz	GPLv2	1.6+	Port of Fish Fillets NG
Freeciv	A turn based strategy game similar to Sid Meier's Civilization	website	apk	Yes	No	github	GPLv2	2.0+
Frozen Bubble	Knock the bubbles down by making clusters of three or more bubbles in the same color.	website	apk	Yes	Yes	svn	GPLv2	1.6+	Port of Frozen Bubble
GLtron	Lightcycle game.	website	apk	Yes	Yes	github	GPLv2	2.2+	Port of GLtron
H-Craft Championship	SciFi 3D racing game.	website		Yes	No	bitbucket	ZLIB	3.2+	Media is proprietary, but free for personal use.
Nethack Android	NetHack	website	list	Yes	No	svn	GPLv2	1.5+	Port of NetHack
OpenArena	First person shooter similar to Quake 3 (see: id Tech 3)	upstream android	list	Yes [15]	No	github [16]	GPLv2	1.6+	Unofficial port by "pelya" using SDL 1.2
OpenTyrian	Vertical shoot 'em up	upstream android	list	Yes [17]	No	github	GPLv2	1.6+	pelya SDL port
robotfindskitten	A "Zen Simulation"	website	apk	Yes	Yes	Source Dir	GPL	1.6+
Simon Tatham's Puzzles	A portable collection of puzzle games, ported to Android	website	apk	Yes	Yes	github	MIT	2.1+	May be incompatible with newer Android releases
Warmux	A turn-based artillery game	website	apk	Yes	No	svn	GPLv2	2.0+

General

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
Android's Fortune	Quotes and Fortune Cookie program	website	list	Yes	Yes [18]	bzr	GPLv3
Avare	GPS aviation application	website		Yes	Yes [19]	github	Apache 2.0	2.2+
Barcode Scanner	Barcode reader	website		Yes [20]	Yes [21]	github	Apache 2.0	4.0.3+
BOINC	Participate in distributed grid computing initiatives	website	?	Yes	No	git	GPLv3+	2.3+
DuckDuckGo	Widget for privacy focused search engine	website	?	Yes	Yes	github	Apache 2.0	2.2+
FBReader	e-book reader	website	apk	Yes	Yes	github	GPL	1.5+
Galaxy Zoo	Classify galaxies in crowdsourced astronomy project	website		Yes	Yes	github	GPLv3
Google IO	App for Google IO conference	website		Yes	No	git	Apache 2.0
iFixit	Official iFixit reader	website	?	Yes	Yes	github	GPLv3	2.2+
Impress Remote	Presentation remote control for LibreOffice	website	?	Yes [22]	Partial [23]	git	MPL2	2.3+
MAPS.ME	Offline mapping program using OpenStreetMap data	website	list	Yes [24]	No	github	Apache 2.0
MuPDF	PDF and XPS viewer	website	?	Yes	Yes	git	AGPL	2.2+
OsmAnd	Offline mapping program using OpenStreetMap data	website		Yes [25]	Yes [26]	github	GPLv3	2.3+
ownCloud	Client for synchronization server	website	?	Yes	Yes	github	GPLv2	4.0+
PressureNET	Crowd-sourced barometer network	website		Yes [27]	No	github	GPLv3
SageMath	Client for mathematical software	website	?	Yes [28]	Yes [29]	github	GPLv3	2.0+
Sugar environment	One Laptop per Child learning platform	upstream android		Yes [30]	Yes [31]	github	Apache 2.0	2.3.3+	Ported as Sugarizer. Also available in Firefox Marketplace [32].
Tomdroid	Note taking application with online sync	website	list	Yes [33]	Yes	bzr	GPLv3	1.6+	Port of Tomboy
Wikipedia	Access to Wikipedia	website	apk list	Yes [34]	Yes	github	GPLv2	2.2+

Multimedia

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
Kodi (formerly XBMC)	Media player, media center	website	list	Yes [35]	No	github	GPLv2+	Multi
Ringdroid	Ringtone maker	googlecode		Yes	Yes	github	Apache 2.0	4.1+
Subsonic	Streaming Media Player	website	list	Yes	Yes	svn	GPLv3	2.1+
VLC	Media player	website	list	Yes	Yes	git	GPLv2+	2.1+
Popcorn Time	Media player utilizing BitTorrent protocol	website	?	No	No	git	GPLv3+ (AGPL exception)	?
Wikimedia Commons	Client for free media repository	website	list	No	Deprecated	github	Apache 2.0	2.3+	No longer being maintained.
Tribler	Decentralized video sharing	website	?	Yes	No	github	LGPL v2.1+	3.0+

Security

Application name	Description	Website	Availability				License	API	Note
			APK	Play Store	F-Droid	Sources
KeePassDroid	Password manager	website	list	Yes [36]	Yes [37]	github	GPLv3	1.5+	Port of KeePass
PasswdSafe	Password manager	website	list	Yes	Yes	git	Artistic License 2.0	1.6+
Prey	Anti-theft and monitoring	website		Yes	No	github	GPLv3

See also

• F-Droid, an app store for open-source applications
• Replicant (operating system)
• The Guardian Project
• List of open-source mobile phones
• List of open-source hardware projects
• Open-source computing hardware

External links

There are a number of third-party maintained lists of open-source Android applications, including:

• Android Open Source resources and software database
• F-Droid Repository of free and open-source Android software

• Frontend for F-Droid

• PRISM Break, curated list of security focused open-source alternatives.

• Droid-Break, curated list of general purpose open-source alternatives. Inspired by PRISM-break.