Google Authenticator - Google Authenticator is a multifactor app for mobile devices.
PINGTAG - The emergency contact QR tags for your car and personal items
andOTP - andOTP is a two-factor authentication App for Android 4.4+
SeQR Contact - Keep your privacy secure and ensure your property stays out of the lost and found with SeQR Contact labels, tags, and stickers
Microsoft Authenticator - One app to quickly and securely verify your identity online, for all of your accounts.
AirTag - Apple's answer to Tile, for finding your devices