Welcome to BPSoft!
I am an independent developer building apps for Android, Windows and soon for iOS as well. Chess puzzles, music tools and handy everyday apps – clean, simple and ad-free.
Mobile apps (Android)
Click a store badge to download.
See all my apps on my Google Play developer page (bpsoft) →
Popular apps
Keep Audio Alive Ultimate
No more hum, pops or sleeping speakers: keeps your USB DAC, headphone and Bluetooth speaker output awake.
Guitar Scale Master
See it, hear it, play it: scales, patterns, sequences, chords and jam tracks.
Coming soon
Poker Chip Tracker
Track chips, blinds and pots for your home poker game.
Coming soon
Quick Lock: Instant Lock Free
Lock your phone with one tap from the app icon – fingerprint and face unlock keep working. A completely free utility.
Singer SongBook
Sheet music, lyrics and setlists in one place, ready for the stage: PDF, image or text, auto-scroll and annotations.
Chord Transposer
Transpose chord sheets to any key in one move, with capo advice and guitar tabs.
Black Screen: Mobile & TV Free
One tap turns your screen black – on phones and on Google TV / Android TV. Perfect for audio, casting and night. A completely free utility.
Chess puzzles
Chess Games Deluxe
9 chess variants in one app! Play anywhere, anytime.
Chess Joust – Knight's Game
Master the knight! A unique strategic board game. Play solo, PvP or vs CPU.
Chess Solitaire
Capture your way down to a single piece! Clever logic puzzles.
Chess Maze
Reach the goal while avoiding every threatened square!
Chess Dominance
Cover every square with as few pieces as possible. Can you dominate the board?
Chess Peaceful
Peaceful chess: place the pieces so that none of them attacks another!
Chess Detective
Play detective! A unique logic puzzle where Minesweeper meets classic chess.
Desktop apps (Windows)
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Guitar Scale Master
The desktop edition of the guitar practice suite: interactive fretboard, scales, chords and jam tracks on a big screen.
Chess Puzzle Deluxe Free
Over 20 game modes: deductive chess puzzles, the Stockfish engine, fairy-chess variants and 5.7 million Lichess puzzles. Completely free!