Localytics - App analytics and marketing for iPhone, iPad, Android, HTML5, Blackberry and Windows apps.
iOS Stack - A curated collection of iOS resources for app builders
Liftoff.io - eCommerce & web to print platform
iOSStash - A huge collection of app-related tools
Bidalgo - Bidalgo is a platform offering solutions to run campaigns for mobile app user acquisition.
Confirmic Cookie Widget - The only cookie solution designed with great UX in mind