From Publisher’s description:

HelpDeskSaaS is a Help Desk Software-as-a-Service for Customer Service and Support that combines help desk functions into one collaborative package intended for use in web B2B or B2C environments. Allow customers to access HelpDeskSaaS as a standalone web based help desk or as a part of your website pages. Whatever option you use, all the core functionality you’ll need to run and manage your customer service and support are included. It’s scalable – can be as simple or as sophisticated as your business needs.

Basic features:
Advanced features:
Interface:
Additional modules:
Non-functional:
Easy of Use:
Overall:

Pricing: From 14,50 USD to 24,50 USD/Month/ agent; Free Plan also available.

Visit: http://www.helpdesksaas.com/