What are the best Messaging Tools?

Bring all your communication together in one place

Bring voice and messaging to your web and mobile applications.

Chat-based workspace in Office 365

A cloud-based instant messaging and voice over IP service

A freeware, cross-platform messaging and Voice over IP service

Flowdock is your team's chat with a shared inbox. Teams using Flowdock react in seconds and never forget anything.

API for SMS, Voice and Phone Verification

Build live interactive video, voice and messaging into your web and mobile apps

Team collaboration with real time chat.

API platform to build Voice & SMS Applications

Build your own customized Telegram clients

The phone system for modern business

Slack for the whole world, except end-to-end encrypted across all your devices

Chat API & SDK