Which email client do you use? Did you know that Mail on the iPhone is now used more than Outlook? That shows that more email is now being opened on mobile devices than in desktop clients, though the use of webmail could be happening in both places.

The stats are from Litmus, an email testing and analytics company that examined one billion “opens” of emails sent by its customers in June, then compiled the findings into this infographic:

The reason Gmail might be so low in the Litmus stats is because a lot of people's @gmail.com is linked to their Apple Mail client or Outlook client.

What do you guys think of the stats?