How do I install Element (Matrix) on Android?

Someone asked me how to install Matrix on Android, so I told them to search for Element on the Play Store, but the app there looks scammy. It’s listed as "Element X — Secure Chat & Call" by New Vector Limited, with 4.4 stars and only 644 reviews. Is that the right app?

I installed Element from F‑Droid, but I don’t want to tell someone to install more than one app just so we can communicate.

Updating: Using that package there was an "Unexpected error: Missing CSRF cookie"