App Annie - App Annie is a marketing analytics tool available for apps of all kinds. With App Annie, you can track sales, traffic, and a variety of other factors pertinent to monitoring an app's trajectory.

Depict.ai - Amazon-quality product recommendations for any online store

AppFollow - AppFollow is an integrated solution that makes monitoring, analyzing, and elevating your app's reputation easy.

Suto - Get one-on-one expert product recommendations.

Sensor Tower - Sensor Tower is a platform for app store optimization and app industry intelligence.

MailChimp Product Recommendations - Easily build automated personalized email marketing