AdStack's spent the last two years building and perfecting email technology that enables marketers to serve unique content based on when, where, and how a message is opened. This technology, LiveOptimizer, allows for greater data driven marketing optimization, personalization, and real-time content to be distributed in email. No longer is it necessary for email to be static and unresponsive. Upload your creatives, select what content you want to optimize or personalize and click send. Increase engagement using such features as real-time A/B/n and multivariate testing (one easy send), deliver content optimized for device or location, or deliver live content inside emails.