Pixenator, A Drawing program aimed at pixel perfect editing!
You can zoom with two fingers and than double tap to draw again.
With 3 fingers you can pan the image.
Double tap on the brush/pencil/eraser to select or add/modify presets.
You can select the color palette from the setting menu.
It has a pixel grid for high magnifications, you can set the minimum zoom level to activate it.
You can save the images in PNG format.
You can load any of your photos, or snap a picture and draw on them or apply effects!
This is still and early Alpha version , if you find any bugs or have suggestions or request, don't hesitate to contact me.