Orgzly
Outliner for notes and tasks in plain-textGPL-3.0+
orWall
Force apps to use TorGPL-3.0
Orweb
Privacy-enhanced browserGPL-2.0
OS Monitor
Monitor the Operating SystemApache-2.0
Oscilloscope
Audio Oscilloscope and SpectrumGPL-3.0
OsmAnd Contour lines
Show contour lines in OSMAndGPL-3.0
OsmAnd~
Global Mobile Map Viewing & Navigation for Offline and Online OSM MapsGPL-3.0
OSMBugs
View OpenStreetMap errorsWTFPL
OSMTracker
GPS Track RecorderGPL-3.0
OSRS Helper
View your RuneScape statsGPL-3.0
OTP Authenticator
A two-factor authentication AppMIT
Ouroboros
Client for 8ch.netGPL-3.0
Overchan
Browse multiple imageboardsGPL-3.0
Overchan (fork)
Browse multiple imageboardsGPL-3.0
ownCloud
Synchronization clientGPL-2.0
ownCloud Beta
Synchronization clientGPL-2.0
ownCloud Bookmarks
A front end for the Nextcloud Bookmark appMIT
packlist
Manage packing listsApache-2.0
PactrackDroid
Swedish parcel trackerGPL-2.0+
Padland
Etherpad managerApache-2.0
PageTurner
Synchronising e-readerGPL-3.0
Paper
Icon themeCC-BY-SA-4.0
Paper Wallet
Back up bitcoinsMIT
PaperLaunch
Side launcher in material design that launches apps with one gestureApache-2.0
Papuh
Display live wallpapersCC-BY-SA-4.0
PariDroid
PARI/GP computer algebra systemGPL-3.0+
ParkenDD
Show available parking slots in DresdenGPL-3.0
PassAndroid
View Passbook filesGPL-3.0
PassCard
Generate password cardGPL-3.0
PasseGares
Voyager à travers les gares pour tamponner votre visa !MIT