Weird fonts - ⓑⓤⓑⓑⓛⓔ ⓕⓞⓝⓣ ⓚⓔⓨⓑⓞⓐⓡⓓ
This app lets you send text messages or WhatsApp messages to your friends, while the text appears upside down!
A second point is that with this app you can circle all the letters. These can be sent via text message or via email. But you can also use these characters in your phone contacts!
Almost every other phone can receive these characters!