HelpScout - Help Scout is a simple, straightforward way to provide excellent support
Zendesk for Startups - Everything you need for seamless customer conversations.
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
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
Free HelpCrunch Live Chat - Free live chat & in-app messenger for startups
Hiver - Manage Customer Support, Sales and Projects right from your Gmail inbox. Collaborate with Shared Labels, Shared Contacts, email notes, email reminders and email templates