RComposition app for iPhone and iPad

It is an application which compounds the photograph of two upper and lower sides.
Transparency of the portion which traced the screen with the finger and changed the color is carried out.
The transparency can perform transparency, remarkable transparency, and four steps of somewhat transparent and opaque setup.
Please write a line and a character freehand, or a screen is painted out and let me complete by cutoff finally.
The transparency of the size of painting out or the whole screen can also be changed.
The made picture can be attached to the preservation to a camera roll, or mail.