You likely set up Roblox 2FA using email verification instead of an authenticator app. Roblox’s 2-step verification settings include authenticator app, email, and security key options, and several setup guides show that email can be enabled by toggling it on and confirming a code sent to your registered email.

What probably happened

  • You went to Settings.
  • Opened the Security tab.
  • Turned on 2-Step Verification.
  • Chose Email rather than an authenticator app.
  • Entered the one-time code Roblox sent to your email to finish setup.

Why no app was needed

Roblox does not require an authenticator app for 2FA. Email verification is a supported second-factor method, so your account can still have 2-step protection without Google Authenticator or Microsoft Authenticator.

How to check

Look in Roblox settings under Security and see which 2-step method is enabled. If email is active, you should receive login codes in your inbox whenever Roblox asks for verification on a new device.

TL;DR

You probably enabled Roblox 2FA through email codes , not an authenticator app, which is a normal Roblox setup path.