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.
Snack - Read all your favorite email subscriptions in one app
PushBots - Light SDK for mobile push notifications
Out of the Ordinary Emails - Exceptional newsletters about creative obsessions
iZooto - Engage your mobile and desktop web users with intelligent web push notifications.
Money Robot - Money Robot Submitter is the most powerful SEO automation tool designed to publish your content and backlinks to thousands of websites.