What are some alternatives?
helpware - helpware is your customer service team via email, chat and on the phone.
Tenfold - Tenfold is a mobile game that is designed primarily to be played by iPhone users. The game is available on the app store. The tagline of the game is "twenty seven numbers, endless puzzles. Read more about Tenfold.
BubbleIQ - Integrate Zendesk with Slack to supercharge customer support
HiOperator - HiOperator is a virtual assistant that answers phone calls, chats with customers, provides in-app help, takes orders, and provides support.
DigitalGenius - DigitalGenius brings practical applications of artificial intelligence into the customer service operations of global companies.
statuspage - A simple self-hosted status page site with an API written in Django under the BSD license.