OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Synthesio - Synthesio is a social intelligence tool or a marketing software that is specially made for the purpose of social media monitoring and social analytics.
PushBots - Light SDK for mobile push notifications
Swift Social - All-in-One Social Media Growth and Management Tool
ZoPush - Personalized Browser Push Notifications for Web and Mobile.
LeadsRX - LeadsRX is a marketing attribution software that gives marketers insights into which advertising campaigns result in conversions.