Bitsy app for iPhone and iPad

Bitsy is a true binary puzzle: each cell must contain 0 or 1 when using the default Digits skin.
Bitsy now provides 8 additional skins using graphic symbols rather than 0 and 1.
The author feels that the Flat and LeftRight skins are most challenging!

The rules are simple:
- Series of three or more 0 or 1 cells in a row or column are forbidden.
- The nr of 1s in a row or column must be equal to the number of 0s (or one more for odd sized grids).
- Identical rows or columns are forbidden.

The initial green values can not be modified.
Your task is to fill the blank cells.
Tap to change them into a yellow 0 or 1, or to clear them.
Zooming in may help to select a cell.

The background of the two last changed cells is gray and brown.
You can ask Bitsy to check your answers: wrong values will be colored red.

You can choose between
- nine skins,
- two difficulty levels, and
- five grid sizes starting at 8x8 up to 12x12.

It takes 1 minute to start playing, but itll give you hours and hours of puzzle fun!

Some people use the name binero to refer to this binary puzzle.