Before we start, download Snapchat Authenticator App.

Open your Snapchat app on your mobile device. Tap on your profile picture in the top left to go to your profile, then tap (gear symbol) in the top right corner.

Move through the next screens by tapping: Two-Factor Authentication --> CONTINUE --> Let's do it!

You'll need to choose your security method. Select Authentication App as it's the most secure method.

To be sure that you will get 2FA codes for your Snapchat account with our app select Set up Manually.

A pop-up window will appear for you to scan the QR Code. Take a screenshot of the QR code screen and save it into Files on your device.
Note: Do not scan the demo image shown below.

Take out your mobile device and open the Authenticator App. At the bottom of the screen, tap the plus sign and choose Files, next select the QR code screenshot you made earlier.

After successfully importing the QR Code screenshot, the Authenticator App will automatically choose the Snapchat logo and autofill account name and secret key. Confirm it’s correct by clicking Save

Returning to the Snapchat app, enter the numerical code from Authenticator in the appropriate field. When done click Continue.

Your Snapchat account is now protected. You can copy the backup code into Authenticator or save it in the photo gallery, no matter where you gonna save it, the most important is to store the backup code in a safe place. Press Next and that's all.