The team is currently working on developing a version of the app that is compatible with Android devices, that I can confirm.
That said, it's really too early to say when exactly this new version will be available. In other words, the team doesn't have a set date for the release of the Android app.
So a good answer to your question would be coming soon! How soon? We don't know yet.
Until the new app version drops, make sure to check out the official "sign up here and we'll let you know when the app is out" thing :D