AstraChat is an enterprise chat and messaging product that provides privacy and security out of the box.
Based on our record, imo.im seems to be more popular. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
It's an instant messenger app, it seems like I can only download them, bc they don't have any dedicated web messaging feature Https://imo.im/ Https://www.viber.com/en/. Source: about 1 year ago
📎45. imo.im: Chat with your buddies on Skype,Facebook, GoogleTalk, etc from one place. Source: about 2 years ago
OP appears to have said (IMO - I guess autocorrect capitalized it?), it's just not particularly obvious. Source: almost 3 years ago
Mattermost - Mattermost is an open source alternative to Slack.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Skype - Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.
Slack - A messaging app for teams who see through the Earth!
Facebook Messenger - Facebook Messenger is a faster way to message.
Zulip - Chat for distributed teams. Zulip combines the immediacy of real-time chat with an email threading model. With Zulip, you can catch up on important conversations while ignoring irrelevant ones.