Mahfuzar Rahman

The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list as a widget on your WordPress 2.8 or higher site.
Not sure what <a href="http://www.mailchimp.com/features/full_list/" rel="nofollow ugc">MailChimp</a> is or if it will be helpful? Signup up for a <a href="http://www.mailchimp.com/signup/" rel="nofollow ugc">FREE Trial Account</a> and see for yourself!
After Installation, the setup page will guide you through entering API information, selecting your List and then add the Widget to your site. The time from starting installation to have the form on your site should be less than 5 minutes – absolutely everything can be done via the WordPress Setting GUI – no file editing at all!
<h3>Developer Mode</h3>
You can enable “Devleoper Mode” by adding the following line to your <code>wp-config.php</code> file just above the “That’s all, stope editing!” line.
<pre><code>define('MAILCHIMP_DEV_MODE', true);
</code></pre>
This will enable the MailChimp List Subscribe plugin to operate without the need to connect an external MailChimp Account, and will provide a 
subscription form widget that will not actually submit anywhere.
This will allow you to style and configure the widget in non-production environments that are not publicly accessible.
For more Developer Mode customization options see the following article:
http://connect.mailchimp.com/how-to/how-to-article-configuring-developer-mode-for-the-list-subscribe-wordpress-plugin

Easy Mailchimp Optin Form

The MailChimp plugin allows you to quickly and easily add a signup form for your MailChimp list as a widget on your WordPress 2.8 or higher site.

OTP-less

Truly Password-less & OTP-less One tap login. Add mobile & email based social login instantly. 
OTPLESS transforms user authentication with truly password-less & OTP-less logins. Users can login into any WordPress store with just one tap, enhancing user experience and boosting login conversions. We support Sign in with WhatsApp, Google, and Apple for mobile and email-based authentication. Adding password-less login to your WordPress store is as easy as installing this app! No setup required.
✓ Login with WhatsApp, Google and Apple with just on e tap
✓ Get more customers by improving login conversion and user experience
✓ Add OTPLESS in a single click with automated setup & installation
✓ Free forever, for unlimited users.
✓ White labelling and custom branding options available

OTP-less one tap Sign in

One-tap mobile number & email based social login.

Easy Mailchimp Optin Form vs OTP-less one tap Sign in