Great app, but there are some issues with Masking I'd like to discuss:

• Please add mask scaling/positioning. The masks are all square shaped and can't be scaled/positioned which makes applying a mask to anything but a square image ugly
• Please add custom masks. I would love to load black/white or greyscale images to be used as a custom mask, this would allow me to be much more creative.

Thanks again for the great app.

As the title says, would love to be able to copy layers. Particularly when I've resized and moves am image when adding, this would remove a lot of guesswork.

Please add an undo button. I hate going from the beginning when i make a simple mistake

three ideas: 1) a square eraser tool. 2) the ability to undo just your last erase (for accidental touches) 3) the ability to erase all of one color from a layer. ex. use a dropper - pick a color.

cool app I'm having fun with it. the layers stop after 4 right? maybe the ability to add more layers would be nice? last question, what does the erase thing do on the erase screen. pencil, brush, eraser that I can't quite figure out. thanks