Est. 2026Independent software studio South Africa

We build software people come back to.

Katflux is an independent software studio. We design, build and run our own SaaS products and mobile apps, from the first sketch to the app store and every update after that.

See our products Contact us

Hold and drag on the wall to sprayTurn on spray mode to paint the wall

Products

Built &
shipped

Products we design, build and operate ourselves. Two out in the world, more in development.

  • Live on the web
  • Web · Android · iOS

CipherChess

The study platform where serious chess players prepare. Ten million games, living repertoires and reviews that tell the truth, all in the browser.

  • Search 10M+ games by position, player or opening
  • Build opening repertoires and drill them
  • Review any game move by move with the engine
  • Daily puzzles, free to start, nothing to install
Visit cipherchess.com

Android and iOS apps coming soon

The CipherChess board reviewing Carlsen against Firouzja: an evaluation graph across the game, 96.8% and 87% accuracy, move 16 Bxg6 marked best on the board, and a move quality breakdown from great to mistake
Opponent prep on the CipherChess board: after 1.e4, every reply Magnus Carlsen has faced is drawn as an arrow, with games played and a white, draw and black bar for each
Prep against Carlsen: every reply he's faced after 1.e4
Stockfish at depth 30 in CipherChess showing its three best lines, above the notation of the game being studied
  • Coming soon
  • Android · iOS

Nightboard

A blindfold chess trainer. Short nightly sessions build a picture of the board you can hold in your head, then put it to work in puzzles and full games played without a board.

  • 36 guided lessons, from coordinates to full blindfold play
  • 260 blind puzzles across 11 chapters
  • Blindfold games against six opponents, each with a style
  • A vision rating that tracks speed and accuracy
Get notified at launch

Google Play and the App Store

  1. A Nightboard drill: arrows on the board show the line to memorise before the lights go out

    Watch the line, then play it in the dark

  2. Choosing a blindfold opponent in Nightboard, from Pebble the beginner to tougher characters

    Opponents with a personality each

  3. The Nightboard training hub with a heatmap of how sharply you know each square

    A heatmap of every square you know

  4. A Nightboard game won by checkmate, played entirely blindfold

    Checkmate, without ever seeing the board

More products are in development across SaaS and mobile.

Studio

How we
work

Katflux is an independent software company based in South Africa. We build our own SaaS products and mobile apps from end to end, and we stay with them long after launch.

  • End to end

    Design, code, infrastructure and support all happen in-house. Nothing gets lost in a handover.

  • Fast on any device

    We test on budget phones and patchy connections, not only on the latest flagship.

  • Honest by default

    Clear pricing, no dark patterns, and we never sell your data.

  • In it for the long run

    Every product is maintained, improved and shaped by the people who use it.

Contact

Get in touch

Partnerships, press, product questions or support. Write to us and a real person will read it.

Open in your mail app Product support: support@katflux.com