Qualpay

Qualpay for Gravity forms supports both one-time and subscription payments. All customer payment data is collected in Qualpay’s Level 1 PCI compliant Embedded Fields. Apply for a Qualpay Merchant Account today. https://www.qualpay.com/get-started/gravity-forms

Qualpay Add-on for Gravity Forms

Qualpay for Gravity Forms.  Add credit card payments to your custom gravity forms.

payop

Payop: Online payment processing service ➦ Accept payments online by 150+ methods from 170+ countries. 
Payments gateway for Growing Your Business in New Locations and fast online payments.
What this module does for you:
<ul>
<li>Free and quick setup</li>
<li>Access 150+ local payment solutions with 1 easy integration.</li>
<li>Highest security standards and anti-fraud technology</li>
</ul>
<h3>Support</h3>
<ul>
<li><a href="https://payop.com/en/documentation/common/" rel="nofollow ugc">Payop Documentation</a></li>
<li><a href="https://payop.com/en/contact-us/" rel="nofollow ugc">Contact Payop support</a></li>
</ul>
TIP: When contacting support it will help us is you provide:
<ul>
<li>WordPress and WooCommerce Version</li>
<li>Other plugins you have installed
<ul>
<li>Some plugins do not play nice</li>
</ul>
</li>
<li>Configuration settings for the plugin (Most merchants take screen grabs)</li>
<li>Any log files that will help
<ul>
<li>Web server error logs</li>
</ul>
</li>
<li>Screen grabs of error message if applicable.</li>
</ul>

Payop Official

Add the ability to accept payments in WooCommerce via Payop.com.

Qualpay Add-on for Gravity Forms vs Payop Official