If you use Kolleno two factor authentication, you will need to scan the QR code (or manually enter the code) in a dedicated app. Here are a few apps the Kolleno team recommends:
1) AUTHY: https://authy.com/download/
2) GOOGLE AUTHENTICATOR:
Download an app for Two Factor Authentication
Some apps recommended to use Kolleno Two Factor Authentication.
Written by Kolleno Support
Updated over a year ago