Pencil Button

Pencil: touch or drag to draw
Eraser Button

Eraser: touch or drag to erase
Line Button

Line: touch and drag to draw line (V1.1)
Shape Button

Shape: touch and drag to draw a rectangle (or circle) (V2.0)
Fill Button

Fill: touch to fill area with color, drag finger to preview
Magic Eraser Button

Magic Eraser: touch to erase continuous area, drag finger to preview (V1.3)
Select Button

Select: touch and drag to select, choose from Copy, Cut or Delete on release (V1.1)
Stamp Button

Stamp: touch and drag to place copied pixels (V1.1)
Move Button

Move: touch and drag to move all pixels (V1.2)
Eyedropper Button

Eyedropper: touch to set current color
Recenter Button

Recenter: reset image to fill the screen (V1.01)
Onion Skin Button

Onion Skin: choose a frame to view behind current view
Visibility ButtonInvisibility Button

Onion Visibility: toggle the onion skin on/off
Flip Button

Onion Flip: horizontally flip the current onion skin image (V1.01)
Clone Button

Onion Clone: pastes the current onion skin image into the empty pixels of current frame. Only available if onion skin and current frame are the same size. (V1.01)
Image Button

Background Image: choose an image from your photo library to view behind current view (does not create pixels of your sprite) (V1.1)
Visibility ButtonInvisibility Button

Image Visibility: toggle the background image on/off (V1.1)
Grid Button

Grid: toggles visibility of drawing grid (V1.1)
Repeat Button

Repeat: toggle showing current frame in preview repeated (V1.2)
Undo Button

Undo: undo last drawing action
Redo Button

Redo: redo previous drawing action