How can I change back to gmail.com account? How can I transfer all info back to gmail.com?

[iMore Question]

I received an e-mail from someone using google app, immediately my email account using gmail.com transferred to google app. I don't like google app as the text is too small. How can I change back to gmail.com account?

 

[zocster]

hello there, did you mean 'inbox by gmail'?