What are some alternatives?
When comparing ArrowChat and Sharepoint Online, you can also consider the following products
Ryver - Ryver provides all of your team communications in one place: chats, posts, and files.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
QnA Maker - Build a Q&A bot from a web page in seconds
Cometchat - Enable Voice, Video and Text Chat on Website and Mobile Apps using CometChat's Messaging & Chat API.
Podio - Podio is the online work platform. Manage, share, and get your work done smarter together with tools that work like you. Free for 10 Users.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.