Face on Stamp Booth and Face on Coin Booth essentially perform the same task. You can take a photo and impose it onto a coin or a stamp. Not only do you get to insert the picture, but you can also add text to replace the words that may go around a stamp or a coin.
So what is the point you ask? There are multiple avenues for integration to the classroom for these apps. Try them with characters or historical figures. Have the students create a stamp or coin for the purpose of adding it into their writing. Try it with vocabulary words and definitions. They could easily take their own pictures or find images from the internet that would match vocabulary terms. The students could then create a coin or stamp with the descriptions/definitions surrounding the image.
Not only that, but it is just a lot of fun, and I'm sure that the kids will love using it.
Let me know how it works for you. Send some examples to me. Let me know of your creative ways that you are implementing these apps.