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

Sleeknote - Set up lead capture forms on your website in minutes. No coding required. Sync your new email leads with your favorite email service provider. Try for free.

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.

POPUPSMART - A no-code tool to increase e-commerce sales, build email lists and engage with your visitors in just 5-minutes.

appfigures - Cross-platform app store analytics for all of your mobile apps.

OptinMonster - OptinMonster helps to convert abandoning website visitors into subscribers and customers.