Battery Live
Set the wallpaper based on the battery levelGPL-3.0+
BatteryBot
Battery monitoring tool, "free" versionGPL-3.0
BatteryBot Pro
Battery monitoring tool, "pro" versionGPL-3.0
Beacon Locator
Interact with Bluetooth beaconsApache-2.0
BeeCount
Knitting row counterApache-2.0
Beem
XMPP Instant Messaging clientGPL-3.0+
BeHe Keyboard
Hacking & programming keyboard with material designApache-2.0
BeHe Pro
Browse the webApache-2.0
Berlin-Vegan
Guide for vegan dining and shopping in BerlinGPL-2.0+
Beta Updater for WhatsApp
Update WhatsApp to latest beta releaseGPL-3.0+
Bewegungsmelder
Get event information for Hamburg, GermanyGPL-3.0
Bienvenido a Internet
Bienvenido a Internet text/image board browserGPL-3.0
Bierverkostung
Document and manage your personal beer tastingsApache-2.0
BiglyBT, Torrent Downloader
Free, open source torrenting for Android phone, tablet, Chromebook, & Android TVGPL-2.0+
Bimba
First Free Software Poznań Wandering Guide
MIT
Binaural Beats Therapy
Sound to brainwave harmonizerGPL-3.0
BipolAlarm
Alarm clock with 2 stagesApache-2.0
Birthday Adapter
Birthday Calendar AdapterGPL-3.0
Birthday Calendar
Creates birthday events from all other calendar's dataGPL-3.0
BirthDay Droid
Check your contacts birthdaysGPL-3.0
Bitcoin
Simple Bitcoin walletGPL-3.0
Bitcoin Wallet
Store digital currencyGPL-3.0
Bitcoin Wallet [testnet3]
Testing version of BitcoinGPL-3.0
BitShares Wallet
Use Smartcoins like bitBTC, bitUSD & bitEUR in 22 languages w/QR codes & moreGPL-3.0
BLExplorer
Bluetooth Low Energy ExplorerGPL-3.0
BlitzMail
Share content and notes via emailAGPL-3.0+
Blokada ad blocker
The ad blocker - battery efficient, fast, powerful and simple to useGPL-3.0
Blokish
Board gameGPL-3.0
Blue Minimal
Minimalistic CM12+ themeGPL-3.0+
Bluetooth RepRap
Reprap (3D printer) controllerCC-BY-SA-3.0