encrypted messaging between WhatsApp users. And that's not even mentioning the options for voice, video and file-sharing to other users. Just type a single word to get a list of matching canned resources. Of course, if your company already takes advantage of Microsoft's Office 365, then you could do just as well with Microsoft Teams android, iOS the tech giant's own productivity-oriented messaging app. At its annual developer conference in April, Facebook said it's working on an update to Messenger called Lightspeed that will make the app faster while also taking up less storage space on your mobile device. Full Notre Dame Column. In addition, the app features a system of chat channels, allowing you to quickly set up subgroups for task or topic-oriented discussions. License agreement approval does not automatically mean the OIT staff can provide support for the software. Facebook Messenger android, iOS a dedicated messaging app that builds on Facebook's chat network and adds more mobile messaging features as well as extensions and add-ons. A Secure Chat mode provides end-to-end encryption so that only you and your intended recipient can read. Remote control of Android and iOS devices. Slide 4 of 26, slack (Android, iOS: Free productivity and team-oriented messaging app Slack android, iOS ) has been a hit for corporations and casual users alike with its mix of messaging, scheduling, management tools, and app integration.