TestFlight platform enable mobile developers to perform beta testing and crash reporting, and generate analytics.
A/B testing for apps meta-information: icon, screenshots, description and more.
Analyze user behavior instantly with Eye Tracking Heatmaps, Screen Capture (record and playback actual visitor sessions), and User-Interaction Analytics.
UserTesting is a crowdsourcing service that provides usability testing through a large panel of on-demand users.
Instapage allows marketers to easily build and A/B split test landing pages.
Optimizely is a experience optimization platform enabling A/B and multivariate testing for users to enhance their websites & mobile apps.
IFTTT lets you create powerful connections with one simple statement — if this then that.
Zapier enables anyone (marketing, support, legal, HR, ops, product...) to connect together the web apps they use to run their business, without writing code.
Unbounce Marketing Solutions provides self-serve hosted services that enable marketers to create, publish, and test landing pages.