Andrew Dixon

The plugin is very simple. It adds a setting to the Gravity Forms menu in the WP Admin called “Purge Data” and under this option you set the number of days you would like to retain Gravity Forms entries for, for all forms on your site.
The default is to keep all entries forever, empty field, and a valid value is any number of days from 0 (zero) to X. Once an entry is that number of days old, it is removed.
The cron task to delete the entries runs once per hour, so when set to 0, the maximum time an entry will be stored for is one hour.
PLEASE NOTE: Entries are permanently deleted, so use with care.

Gravity Forms Data Purge

Simple plugin to purge data from Gravity Forms Entries that are older that a certain number of days.

Freemius

robinlopulalan

Anonymize personal data (PII) in WordPress databases for development and testing. Comply with rules and regulations, prevent data leaks.
WordPress database are often copied from production to test and development environments. This ensures a representative WordPress installation for productive programming and testing. 
However, most production databases contain Personal Identifiable Information, so you need to have effective security controls in place to comply with rules and regulations such as EU GDPR.
This plugin supports you with complying with rules and regulations and prevent data leaks originating from dev/test WordPress installations, while retaining the database structure and integrity.
<ul>
<li>Export an anonymized version from a live WordPress database as a SQL file.</li>
<li>Anonymize an existing dev/test WordPress database in place.</li>
<li>Transform data using customizable rules, with each rule creating a step of the data transformation.</li>
<li>Anonymize many data types using a wide range of transformations. </li>
<li>Use the built-in ruleset for default WordPress installations for a quick start.</li>
<li>Add, change and delete rules to make the anonymization work as you see fit. </li>
<li>Use powerful options to anonymize any column in any WordPress database table, supporting all plugins that use the database to store personal data.</li>
</ul>
You can create rules to skip specific records that contain PII of admins, developers and testers. This prevents locking yourself out of WordPress and ensures that you and test users can perform their tasks while personal data from customers and other users is anonymized.
<h3>User manual</h3>
The manual is published on the <a href="https://plugins.internetmanagers.nl/database-anonymization/user-manual-introduction/" rel="nofollow ugc">DIM Plugins web site</a>.
Learn about supported data types, special functions to transform data hidden in meta data, JSON or serialized arrays and all possible ways to anonymize personal data.
<h3>Enterprise edition features</h3>
Upgrade to unlock additional features.
<ul>
<li>Import and export transformation rules to distribute a uniform anonymization approach across environments.</li>
<li>Customize the fake data set for domains, names, nicknames, agent strings, street names, city names and IBANs.</li>
<li>Use more powerful transformations for email addresses and personal data hidden in arrays.</li>
<li>Automatically generate rules for the plugins WooCommerce, Gravity Forms, ProfilePress, Fluent Forms, Contact Forms 7 + Flamingo/CFDB7, Forminator, Ninja Forms and Formidable Forms.</li>
</ul>

Database Anonymization Free Edition

Anonymize personal data (PII) in WordPress databases to prevent PII in dev/test environments.

Gravity Forms Data Purge vs Database Anonymization Free Edition