XDSS AppsCalm, focused apps for Android
XDSS Apps is the app studio of X Dev & Security Solution SRL, a small software company based in Romania. We make puzzle games and everyday tools that open fast, stay out of your way and never ask you to sign up.
What we make
Puzzle games
Sudoku, nonograms, minesweeper, mahjong solitaire and a traffic escape puzzle. Logic puzzles you can solve by reasoning, never by guessing, with big readable boards.
Everyday tools
A focus timer, an expense log, a water reminder, a QR code scanner and a notes app. Each one does one job well, in as few taps as possible.
How we build them
No account needed
You never create an account. What you make in our apps is kept on your phone, not on our servers.
Clear about data
Every app has its own privacy policy that says exactly what is collected and why. You can read them all on the Apps page.
Fair pricing
Our apps are free to download. Some show ads and offer a one-time purchase that removes them. No subscriptions.