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Easy GDPR Consent Forms lets you make your MailChimp forms GDPR compliant with no design changes to your existing site. Comply with GDPR Consent requirement for your MailChimp forms with a unique popup method.
With GDPR going into effect, sites using newsletter are required to collect consent from EU visitors on each way the email will be used.
However, adding multiple checkboxes clutters the widget designs and you may not have the means or time to redesign it. And MailChimp Official doesn’t even support GDPR fields for Embedded forms. Keeping that in mind, here’s a unique solution.
<h4>Setup Video (Example @ 1:13)</h4>
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/IO-yP5Rnxsc?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Note: This is similar to how ConvertKit handles it but they use a redirect before a consent form is shown. This plugin does it with better user experience using an in-site popup to decrease friction and bounces.
Features
<ul>
<li>Show a consent form popup on submit for “MailChimp for WordPress” plugin or the official Embedded MailChimp forms.</li>
<li>Limit the consent popup to EU visitors only – with MaxMind GeoLite2 database. This way, you don’t have to bother all other users.</li>
<li>Consent logs are saved, accessible in dashboard, and can be deleted by admin.</li>
<li>Multiple forms of different types supported.</li>
<li>Detailed instructions when adding a form.</li>
<li>No design changes necessary.</li>
</ul>
Disclaimer
It’s not magic: using this plugin does not make your MailChimp forms automatically compliant with GDPR laws. You have to write up messages and create consent choices based on your own legal requirements.
This plugin can provide GeoLite2 data created by MaxMind, available from http://www.maxmind.com. (when GeoLocation feature enabled)

Easy GDPR Consent Forms – MailChimp

Comply with GDPR Consent requirement for your MailChimp forms with an innovative popup and no site design changes.

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As reqired in the laws of GDPR, websites has to notify the user about usage of cookies. Also the data privacy has to be mentioned. 
Exactly this is the function of the plugin: It adds an full customizable bar with cookie notice and hyperlink to privacy policy page. 
However, it doesn’t block cookies. The plugin is full customizable and GDPR compliant. 
The GDPR conformity hasn’t been proved by an lawyer and only reflects the estimation of the author. If you have further questions legal advice is required.
Compatible with Polylang, supports a privacy page for each language!

GDPR tools: Cookie notice + privacy

Good looking and lightweight :) All what you need even if I find this rules about cookies in Europe idiotic.

good looking

Adds a full customizable bar with cookie notice and integrated notice to privacy policy

Easy GDPR Consent Forms – MailChimp vs GDPR tools: Cookie notice + privacy