iPhone auto correct attempts to understand what you actually want to type as you type it. The tool matches with a built-in iPhone dictionary, with your contacts and with replacement words that you teach the iPhone.
In theory the iPhone understands what you want to type and auto correct will fix the words so that what you mean to type is what shows up on screen — instead of typos and random words.
Even with improvements in iOS 9 and newer updates the iPhone auto correct can very often change the meaning of a word and auto correct slang, acronyms, proper names and even swears into laughable alternatives.
To avoid this problem and the frustrations of corrected words that you don’t actually want to type, you can turn auto correct off in the iPhone settings. Use the guide below to disable auto correct so you can send messages exactly as you type them — typos, slang and all.
How to disable Auto Correct on iPhone
This works on the iPhone and on the iPad with iOS 9, iOS 8 and with updates newer updates.
Scroll down and select General.
On the next screen, tap Keyboard.
Find Auto-Correction and turn the slider to OFF.
You’ll also see a Check Spelling option that you can turn off in this menu area. This is a good option to leave on, even if you don’t like auto correct. Check spelling will only show you the misspelled words, not automatically change them. You can tap on a word that is not spelled correctly and get suggestions on what you may have meant to type.