Question: how to change your default email app on iphone?
Answer: Step #1. Launch Settings app on your iPhone/iPad → Scroll down and tap on Mail, Contacts, Calendars. Step #2. Again scroll down and tap on Default Account from under the MAIL section. Step #3. Select any account you want to set as Default Account. Step #4. ...  Step #5. ...  Step #6. ...  Step #7.