Seventy-two percent of Internet users check email on their mobile devices, including both phones and tablets, according to a new report from My.com. The company surveyed 1,000 American internet users and found that Google’s Gmail app was the most popular email app with 48 percent of users using the Gmail app to check mobile email. Thirty-one percent of users reported using the Yahoo! Mail app and 28 percent use their device’s native Mail app to check email on their phones. Only 9 percent of those surveyed said they didn't use an app to check email on the phone.