Background
Yahoo Mail app is top-rated amongst iOS and Android users. There are new features for users to stay organized and on top of what matters. Yahoo users are encouraged to upgrade to the new Yahoo Mail app to benefit from these new features.

The Ask
Develop emails to test against a successful control email campaigns
that generate more app upgrades.

The Solution
When testing against products that work, making small changes to the control email ensures results that share insights on what layouts, call to actions, and visuals lead to more upgrades.