Your channel's Android player app is built and signed for you in the control panel. This guide takes you from a new Google Play developer account to an app your viewers can install, under your own name. If you open a personal account, allow a few extra weeks: Google asks new personal accounts to test the app with real people first.
Play Console changes its wording from time to time. If a label here doesn't match your screen, pick the closest one that does the same job.
Your app, your account: the app is published under your developer account and your name, and you stay in control of it. Moving an app to another account later is possible but fiddly, so start in the one you mean to keep.
A personal developer account created after 13 November 2023 has to run a closed test before the app can go public: at least 12 testers, opted in for 14 days in a row. Organization accounts don't have to.
You start the test itself in step 6, once the app is set up.
Go to Main store listing, under Store presence. It's the page people see before they install.
The Dashboard lists what Google needs to know before your first release (it's all under App content). Go through each one:
Ask your testers to watch while you're live, and to tell you what they think. Google asks how the test went, and real feedback makes a better answer.
Keep a copy of your upload key. In your control panel, the Android upload key card has a Download upload key button. Download the file, note its password (it's shown only once) and keep both somewhere safe. Every build of your app is signed with it.
Your app is a player for your live channel. When the channel is off air, it shows a "We'll be live soon" screen and starts playing by itself the moment you go live. That's what viewers want, but a reviewer who only ever sees that screen may decide the app doesn't work.
Later on: your stream, description, logo, links and contact details come from your channel profile, so changing them needs no update. To change the app's name or icon, build again in your control panel and upload the new App bundle (.aab) as a new release.