Enter the account phone number and password. On the screen that loads, fill in your Username and Password in the appropriate boxes and tap Login. Logging Out (Android) This process does differ slightly depending on if you are using Android or … Roblox is a global platform that brings people together through play. Roblox is ushering in the next generation of entertainment. Roblox is a global platform that brings people together through play. I'm having an issue logging in with the account phone number. At Roblox, we’re always striving to make your login process as seamless as possible. Try these steps if you're having an issue: Make sure you're entering the phone number exactly as it is on the account To log into the Roblox Mobile app, simply open it up and tap the Login button. Today we’re excited to announce that you can now log in to our website and our official mobile app on smartphones and tablets with your email address, phone number, or your Roblox username. Imagine, create, and play together with millions of players across an infinite variety of immersive, user-generated 3D worlds. This feature is only available in some Roblox apps, and you must have a verified phone number on your account.