c2cero

This plugin features a toolbox with various utilities for better GDPR compliance.
In this first version, this plugin adds a mandatory checkbox to comment form where the user agrees to his personal data being collected by the comment form.
This plugin adds also an option to the discussion settings that allows the checkbox label to be customized, so that it can include, 
for example, a link to the site’s privacy policy page.

GDPR Toolbox

This plugin allows you to customize the default text of the GDPR checkbox label in the comment form.

CI II ApS

This plugin helps you on your journey to become compliant with GDPR using a free cookie pop-up, consent log, and more.
Did you know? If you own a business website, you’ll need to comply with additional regulations to avoid huge fines and eliminate uncertainty.
You can try Cookie Information’s business features for free for 30 days.
Get immediate access to: 
– Helping you become compliant with global privacy regulations (GDPR, ePrivacy, and CCPA) 
– A pop-up you can customize to reflect your brand in 40+ languages 
– A powerful cookie scanner that immediately notifies you when one of your webpages is illegally tracking and saving private data

Cookie Information | Free GDPR Consent Solution

This plugin was simple and to the point.
Now it's been taken over and turned into a marketing tool for a premium solution.

It's perfectly fine to have a premium solution, but please, don't bloat all pages with advertising about it..
IMO, this is not the way to market a paid solution in an open source community.

UPDATE:
Since the latest versions it even requires you to provide your details, otherwise it wont work.
I'm reporting this plugin.

Too bad it's turned into a marketing tool

Get your website’s consent foundation in place with our free cookie pop-up (GDPR, ePrivacy, and CCPA).

GDPR Toolbox vs Cookie Information | Free GDPR Consent Solution