Tracks & staged rollout

Four rooms, each bigger than the last

The Play Console doesn't let you go straight from your laptop to every Android phone on Earth — it makes you walk through testing tracks, each one widening the audience:

• Internal testing — up to 100 testers you list by email, live within minutes. No review wait. This is where a build lands the moment it's ready.
• Closed testing — a named list of testers (or Google Groups), bigger than internal, still invite-only. Good for a beta group of real dog walkers before the public sees anything.
• Open testing — anyone can join via a public opt-in link, no invite needed. Your biggest pre-release audience, still clearly labeled as a beta.
• Production — the real Play Store listing, live for anyone to install.

Each track is a separate, smaller bet before the big one — a crash that only shows up on one obscure device model gets caught by 40 internal testers instead of 40,000 production users.