Vector VisionaryStudio
Small apps, drawn with care. We design and build focused little apps — starting with puzzles for e-ink.
Featured app
Version 1.0 — out now
Pen Arcade
A pen-first puzzle arcade made for e-ink tablets. Write numbers by hand — the built-in recognizer was tuned stroke-by-stroke for pen input — or just tap. Sixteen puzzle types across Sudoku, Killer, Arrow, Kropki, Kakuro, Hitori, Nonogram, Slitherlink, Nurikabe, Bridges, Binairo, Numberlink, Star Battle, Maze, and Minesweeper, with fresh dailies and seasonal theme puzzles.
High-contrast, calm, and easy on battery: designed for Boox-style e-readers first — and 1.0 adds a full finger mode, so it plays happily on phones too.
The Boox app shelf
In beta
Pen Arcade
Pen-first puzzles for e-ink tablets.
In development
Segno Score
Your scores, your part's recordings, and a piano.
In beta
Whereverbook
Wikipedia, offline, on your e-ink tablet.
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Still on the sketchpad.
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Still on the sketchpad.
Beyond the tablet
Start anywhere — it's all free to try
Pen Arcade just hit 1.0 — the flagship, sixteen puzzle types, built for the pen. Still free, like everything here.