8 Best Free Instant Messaging Apps for Business

Launching a business can be challenging, especially when it comes to managing costs. One essential tool that every startup needs is a communication or messaging app. In this article, we will explore the best free instant messaging apps for businesses, focusing on internal chat only.


Google Hangouts is available in two versions: a free version for all users and a version that is part of GSuite, a business suite consisting of popular Google apps. Hangouts is accessible on the web, iOS, and Android. You can group chat with up to 150 people and hold video conferences with up to 10 participants. Hangouts also supports bots, which can automate tasks like scheduling meetings and sending automated messages. It is free to use for GSuite users, with additional features available in premium plans.


Microsoft Skype is one of the most widely adopted messaging and VoIP calling apps. It allows group video calls with up to 50 people and enables file sharing from OneDrive and other Microsoft Office 365 apps. Skype also offers features like call recording, call sharing, and voice and text translation. It is a cross-platform app that supports multiple devices.


Facebook Workplace is a relatively new product that has gained popularity. However, some users may have concerns about using Facebook for business due to privacy issues. The free plan of Workplace includes live video streaming, video calling for up to 50 people, and group chats with a generous limit. Workplace lacks desktop clients and does not support third-party apps in the free plan.


Microsoft Teams is a productivity-centered messaging app that offers features like note-taking, channel creation, and a planner. It supports group chat with up to 300 users and has no limit on messages or search capabilities. Teams also provides 10GB of shared storage and supports third-party app integrations. It is an excellent choice for small and large businesses.


Slack is one of the best free instant messaging apps for businesses. It has revolutionized internal communication and influenced other apps like Microsoft Teams and Facebook Workplace. Slack offers features like customizable notifications, searching for old conversations and files, and integration with third-party apps. While the free plan has limitations on third-party app integrations and the number of messages viewable/searchable, Slack remains a popular choice for businesses.

Troop Messenger

Troop Messenger is a new player in the messaging app market, known for its robust security measures. It offers features like fingerprint scanning, server-side encryption, and activity monitoring. The free plan has limited features, but Troop Messenger's pricing starts at $1 per user, making it an affordable option for startups and small businesses.


Chatwork is designed for managing multiple teams within a single interface. It allows you to communicate with different teams across various locations. The free plan includes features like group chat, video calling, and support for chatbots through Zapier.


Flock is a messaging app that focuses on collecting feedback from team members. It allows for text, file, and audio/video communication, as well as polling to collect feedback. Flock also offers features like notes, polls, and to-do lists. The free version of Flock supports unlimited users and provides 10GB of storage.

In conclusion, choosing the right instant messaging app for your business depends on your specific needs and preferences. Microsoft Teams is recommended for Office 365 users, Slack is suitable for most businesses, and Flock is ideal for those who rely heavily on team feedback. Explore these options and find the one that best fits your requirements.