Yes, both Channels and PubNub offer a Free Trial.
Channels is designed for Large Enterprises, Medium Business and Small Business.
PubNub is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Channels Starts at $15/User/Month when Billed Yearly whereas for PubNub Starts at $49/Month.
Some top alternatives to Channels includes HoduCC, ChaseData, Call Center Studio, Dialpad Contact Center, VCC Live, Callision, ice Contact Center, Vonage Contact Center, RingCentral Contact Center and CloudCall.
Some top alternatives to PubNub includes CometChat, Pusher Channels, Socket.IO, Plivo, Twilio Flex, MessageBird, SendBird, Infobip, SMS.to, ZEGOCLOUD and Messenger Communication Platform.