Plumb
Android Web
A calm marble puzzle: tilt the board, every marble rolls at once, and each one has to drop into the hole of its own colour.
Studio
Research is the day job. On the side I make small games and apps for Android and the web, mostly calm puzzles you can play in a spare minute. They are published as Chaosmos, and the puzzle games live at chaosmos.studio.
Games
4 
Carillon
Android Web
A calm chain-reaction puzzle: tap a dot, its ring pops its neighbours, and every pop is a note.
Apsis
Android Web
A calm arrow puzzle: arrows rest on orbits around a sun, and each one you tap flies straight out if its path is clear.
Reaktor
Android Web
A chain-reaction strategy game for 1 to 6 players, with four computer difficulties, several board sizes, and fast rounds full of big reversals.
Apps
1
SecureVault
Android
A privacy vault for photos, videos and notes, encrypted on your phone and hidden behind one of four everyday disguises: Calculator, Notes, Clock or MoodSpace.