| Email Client | Support Level |
|---|---|
| iPhone 3GS iOS5 | Full |
| iPhone 4S iOS6 | Full |
| iPhone 5 iOS6 | Full |
| iPhone 5s iOS7 | Full |
| iPad iOS6 | Full |
| iPad (Retina) iOS7 | Full |
| iPad Mini iOS7 | Full |
| Apple Mail 5 OS X 10.7 | Full |
| Apple Mail 6 OS X 10.8 | Full |
| Android 2.3 Native Client | Full |
| Android 4.0 Native Client | Full |
| Android Outlook Exchange via Native Client | Working |
| Android Gmail App | Working |
| Outlook 2000 | Working |
| Outlook 2007 | Working |
| Outlook 2010 | Working |
| Outlook 2011 OS X 10.7 | Working |
| Outlook 2013 | Working |
| Gmail Chrome | Working |
| Gmail IE | Working |
| Gmail Firefox | Working |
| Hotmail/Outlook.com Chrome | Working |
| Hotmail/Outlook.com IE | Working |
| Hotmail/Outlook.com Firefox | Working |
| Yahoo! Mail Chrome | Working |
| Yahoo! Mail IE | Working |
| Yahoo! Mail Firefox | Working |
| Windows Phone 7 | Working |
| Windows Mobile 6.1 | None |
| BlackBerry OS4 | None |
| BlackBerry OS5 | None |
Pattern Support
All patterns have been tested using either Litmus or with real devices in the email clients listed below. Full = Fully Responsive, Working = Renders Correctly at Full Width but Not Responsive, None = Either the Pattern Doesn't Work or Has Yet to be Tested.