What are some alternatives?
Owler - Owler is a crowdsourced data model allowing users to follow, track, and research companies.
BetaList - BetaList provides an overview of upcoming internet startups. Discover and get early access to the future.
Crunchbase - Crunchbase is a platform for discovering industry trends, investments, and news about companies around the world.
CB Insights - CB Insights is a company database for the venture capital and corporate development community.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
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.