Google announced two new messaging platforms at Google I/O: Allo, an upcoming application heavily integrated with Google Assistant, and Duo, a video app that showcases live footage from incoming calls before users even pick up. These apps also come a mere two days after Google announced Spaces, a group chat application and social network that’s heavily integrated with Google’s own search engine.

Why introduce three separate apps, though? And doesn’t Google already have Hangouts, which offers messaging, group chats, and video conferencing? And isn’t there also something called Google Messenger?

You’re not wrong to wonder, and today’s Google I/O keynote did not clarify whether these new services will exist alongside old tools or replace them entirely. Google told Digital Trends that Hangouts will continue to be supported, and grow, and that every app serves a unique purpose. At the same time, all three new services will offer features not currently seen in Hangouts, some of which will overlap with the platform and others to varying degrees.

To quickly summarize, Google currently offers, or will soon offer:

Confused? Let’s break things down a little more.

We could go on. Gmail users can optionally disable Hangouts, and even revert back to Google Chat. The latter service is compatible with Google Hangouts, but it’s not exactly the same thing. Hangouts doesn’t offer away messages or stickers, for instance, while GChat does.

And we could dig up other communication apps that failed, like Google Wave, but this seems like a good place to stop. We’re not sure what the future of Google’s messaging platforms, but we do know there there are a lot of them. Here’s hoping we don’t have to update this article next year with three more services.