Slack If you want to have a formal and informal chat setup then this is the app to have. Slack has changed the way teams communicate by creating a platform where conversations are divided by subjects and you can chat and share photos, videos and music. This especially works out if your team works from home and you would like to have an online office. Slack is free to download with Standard, Plus and Enterprise ($49-99/month) options with enhanced features, like Google apps integration and usage stats. Pie This is a simple and free app to use. It is a web and has a mobile app that uses work email as a login. Once a business signs up, teams can login any time they like. The chats are divided in category similar to slack although is a bit like Whatsapp in terms of looks. Workplace by Facebook Generally teams and work places do not use Facebook as their source of communication simply because it leads to other social media forums. Although, recently Facebook released a Work app that was released at the beginning of this year for both iOS and Android devices. The best feature on this app are the detailed profiles for each employee with the idea that a manager can use the app to find the right person for the job. The apps also provides a simple messaging feature as well à la the usual Facebook. Voxer Can you imagine texting using your voice command? well, Voxer allows you to do so. The mobile app has this particular feature that frees you from texting. It describes this as a “push-to-talk” feature, which is then stored in delivered and stored in the cloud. It allows you to call colleagues with a tap of their icon on the app. Google apps It would be impossible to have an Android and to have Google apps. The advantage of using Google Apps is the fact that it is popular and has the advantage of having a Gmail, Drive and Hangouts. Each has a chat functionality which comes in handy when dealing with tasks or things like writing documents or setting up spreadsheets. Pricing begins at $5 per user per year. Other google apps in the package include Slides, Google+ and Calendar.