Yes, both Zendesk Talk and ZIWO offer a Free Trial.
Zendesk Talk is designed for Individuals, Large Enterprises, Medium Business and Small Business.
ZIWO is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Talk Starts at $9/User/Month whereas for ZIWO Starts at $109/User/Month.
Some top alternatives to Zendesk Talk includes Nextiva, TalkDesk, uContact, HoduCC, Call Center Studio, TelebuHub, Zendesk Support, VoxDesk, Zendesk Chat and Freshdesk Contact Center (Formerly Freshcaller).
Some top alternatives to ZIWO includes Nextiva, TalkDesk, Calabrio One, CallTools, uContact, CloudTalk, Call Center Studio, Dialpad Contact Center, Callision, RingCentral Contact Center and CallMatrix.