Disable auto correct on square register

I can't seem to find out how to disable auto correct on our square register. It is extremely frustrating and not sure how or why but it's the worst auto correct I've ever experienced; auto corrects to less common words as one example. Please help!

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It's an iPad right? Go to the iPad's Settings - Keyboard - and turn off Auto Correct

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Unfortunately, not, it's a Square register. 

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