Sign in with Roblox to open your dashboard. If this is your first time, that is also how you get one.
Continue with RobloxRoblox only tells this app your user id, username and avatar. Nothing is posted to your account, and the sign-in cannot read your revenue — paste your .ROBLOSECURITY into Settings once you are in, and that does.
Signing in creates your dashboard if you do not have one yet. It starts empty, and nobody else can see it. Your cookie is stored server-side, never reaches the browser, and is never sent anywhere but Roblox.