What are some alternatives?
When comparing SlimFAQ and ZenDesk, you can also consider the following products
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
HelpNDoc - What is HelpNDoc ? Easy to use yet powerful help authoring environment which can generate various documentation formats from a single source.
LiveAgent - LiveAgent is a fully-featured web-based live chat and helpdesk software. It harnesses the power of a universal inbox, real-time live chat, built-in call center, and a robust customer service portal. Start you free 14-day trial today.
Helppier - Helppier provides tools to create interactive user guides in minutes.
HelpScout - Help Scout is a simple, straightforward way to provide excellent support