From Publisher’s description:

Mojo Helpdesk is a ticket tracking / help desk application that allows your organization to centralize, assign and track all your user requests, whatever they might be. You can use it to track customer and tech support requests, internal tasks management, website maintenance, or for anything that should not fall through the cracks. Mojo tracks requests till they get done…

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Pricing: From 12,00 USD to 149,00 USD/Month/ agent; Free Plan available.

Visit: http://www.mojohelpdesk.com/