Chalk - Chalk is a calculator that tries to do right what others do wrong.
FileFlex - FileFlex: Access Share Stream developed and published by Qnext.
Public - Group chats.
Zoho Meeting - Free video conferencing, online meeting, desktop sharing solution from Zoho.
Slaask - Slaask enables you to set up a dedicated live chat channel on your Slack.
Voxox CloudPhone - Get a local or toll-free business number that automatically answers, routes and transfers calls, plus other professional business phone services.