How to turn off Autocorrect on your iPhone, iPad or Mac

Apple's text correction for iPhone, iPad and Mac, known as Autocorrect (officially Auto-Correction) is great for fast typing, but it often changes words in your messages. When it gets things wrong in this way, Autocorrect can be hilarious, but also annoying. If you decide you've had enough, suffer no longer: here's our guide to turning Autocorrect off.