Optimizely - A/B testing you'll actually use.
AppLaunchpad - Create free beautiful screenshots for App store/Google play
Webtrends Optimize - Webtrends Optimize - a powerful, enterprise-grade Testing and Personalisation platform. AB, MVT & Server-side Testing, Product Recommendations & much more.
Placeit - Generate realistic product shots in seconds
Intellimize - Convert more. Optimize and personalize for every website visitor.
Smartmockups - Create stunning product mockups, easily and online.