Eyefi Mobi app
The Eyefi Mobi app works only with Eyefi Mobi cards; both Eyefi Mobi and Mobi cards can use the functionality of the Eyefi Mobi app, Eyefi Cloud, and Eyefi Web app. You must also have an iPhone or iPad that runs iOS 7.0 or later or smartphone or tablet that runs Android 4.0.3 or later.
If you currently use the original Eye-Fi app, please locate your activation code, which you will need to add your card to the new Eyefi Mobi app. On Android you can locate your current activation code in the original Eye-Fi app by selecting Settings > Eye-Fi device settings > Mobi card. There is currently not a way to find your activation code in the original Eye-Fi app for iPhone and iPad.
The older Eye-Fi app works with Pro X2 cards, which cannot use the Eyefi Mobi app.
Additionally, if you have a version of iOS earlier than 7.0 or a version of Android earlier than 4.0.3, you'll need to use the Eye-Fi app.