A free app for Android, by simpleApps.

Create specialized texts with the Text Flip app that lets you write inverted texts for an added flair to your messages. Your flipped messages can be shared directly to social media and messaging sites so you won’t have to worry about having to switch between apps and copying and pasting the text.

Flipped texts not only help make your message unique, but it is also extra helpful when you’re trying to hide a secret message into your texts. You can use these flipped texts in sending confidential information to your friends when you think somebody might be spying around your phones.