Why do my apostrophes look different?
The apostrophe issue is most likely due to the keyboard settings on your computer's operating system. The keyboard on your OS needs to be set at US Standard and not US International. Scroll to languages and click on languages and input settings. Check the language you are using is the one you want (English).
How do I turn off auto apostrophe on Iphone?
Go to Settings -> General -> Keyboards -> Text Replacement and add a Phrase 't with Shortcut 't. This seems to have fixed the issue for me. The apostrophe t in "don't" no longer gets auto-corrected to "don.