Just in time for the weekend, VRChat for Android is now freely available here on Google Play.
I'm an iPhone nativist myself, but if you do have an Android, dear reader, I hope you give this app a try and report your experiences back here.
Prior to this, it was in closed Alpha and only available for VRChat+ paying subscribers. Despite that, it's already been downloaded over 50,000 times, mostly by subscribers. (Which is another way of saying that there are upwards of 50,000 paying VRChat+ subscribers — and probably at least double that number, factoring in all the VRChat+ subscribers who own an iPhone.)
And yes, the Android app supports VOIP and text chat, the VRChat team just confirmed with me. I suspect that will be the main use case for mobile, since it's PC and VR are better for immersion, exploring, and content creation.
The VRChat peeps tell me the Android app has been mainly for social interaction:
"Right now most of the folks that have been using it have been enthusiast VRC users (because of the VRC+ requirement). They've been using it to stay in touch with friends when they're not at the PC, to test their content, and to have basically an easy way to track when their friends are around. That sort of thing."
Now that anyone can use the app, however, usage patterns may start changing. I would not be surprised if the mobile app becomes the most popular way people chat with each other in-world — especially among the large VRChat community who enjoy going to sleep in real life while still logged in.