Keep Calm Generator is a brand new Keep Calm And Carry On Android App, and it is the most completed of them. You will be able to modify the text, text size and text color. As you could change the text size you should fit any text you want!
You also could change background color or maybe select a image from your smartphone gallery, you also have a collection of perfect preset images to choice. The app has 5 filter to apply to your poster, they are really cool.
An finally you will get three icon collections to set, generic, flags and memes. There are almost 500 icons and counting. :)
You will get some posters really professional made by yourself, and of course you will be able to share it on Instagram, Facebook, Whatsapp, LINE, Twitter, any social media you choice, email, Flipboard, Picasa, flickr, Hangouts, Pinterest and many more.