Send OTP through sms to Verify the users without any password. This plugin is based on Email to SMS service, provided by a 3rd party just as clicksend.com etc.
For more details, visit: ClickSend, as well as take a look at how to use it, including the Privacy Policy, and Terms of Service.
OTP Pop-up Class Name
smsotpauthn-popup
Installation:
Installing the plugin:
Unzip the plugin's directory into wp-content/plugins.
Activate the plugin through the 'Plugins' menu in WordPress.
The settings page will be available under settings menu (Settings >> SMS OTP Authn)