CPU-Z - CPU-Z is a freeware that gathers information on some of the main devices of your system : Processor name and number, codename, process, package, cache levels.
Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
Speccy - Speccy - find the details of your computer's specs. Great for spotting issues or finding compatible upgrades. Download the latest version free.
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
AIDA64 - AIDA64 is a system information, diagnostics and benchmarking solution for Windows PC.
andOTP - andOTP is a two-factor authentication App for Android 4.4+