Based on our record, Azure Multi-Factor Authentication seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This is the answer, more detail: https://docs.microsoft.com/en-us/azure/active-directory/authentication/concept-mfa-howitworks. Source: about 2 years ago
Make sure that you back-up the active app-configuration, this way you have an easier way to recover; make sure you are allowed to verify using more than an authenticator, more here. Source: about 3 years ago
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
Invoice.to - A simple & beautiful invoice generator with Stripe & Paypal
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
Free-Invoice.co.za - Free Invoice Software | Free online tool that helps small businesses to generate free invoices and manage their contact list. It can be used as an alternative to expensive invoicing software and online invoicing applications
Duo Security - Duo Security provides cloud-based two-factor authentication. Duo’s technology can be deployed to protect users, data, and applications from breaches, credential theft, and account takeover.
Free Invoice Generator - A free invoice generator for startups