Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
LastPass Authenticator - LastPass is an online password manager and form filler that makes web browsing easier and more secure.