Superimposed Picture app for iPhone and iPad

【About operation】
1 Registered masterpieces are displayed randomly.
When rubbing two screens, the masterpiece of the front gradually disappears,
Another masterpiece is displayed behind
3 Tap on the exclamation mark icon on the upper right, I understood something that appeared!
4 Since the title of the work comes out, please choose the correct answer.
You can choose up to 2 times.
When it becomes 2 or more times, it becomes another masterpiece.
5 If you know the name of the work without scratching the screen as much as possible, the number of crowns will be displayed more.
6 Tap the gramophone icon to listen to iTunes songs to BGM and play.
7 All answers or tap the gear icon to initialize, and
You can play from the beginning.

(All paintings in use are paintings in the public domain whose copyright protection period has ended)