What are some alternatives?
Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!
Pusher Push Notifications API - Send push notifications programmatically at scale
picreel - Recover abandoning visitors and turn them into customers
Push Notification Preview - A simple tool for previewing push notification copy
Zendesk Chat - Zendesk Chat (formerly Zopim) is the fastest way to engage your customers with live chat software.
TruePush - Free forever push notifications on Web and Mobile for everyone.