Chipmunk theme allows your website users to submit their own content they think is valuable. After the submission you’ll be notified by email about new draft waiting for you to review in the WordPress Admin Panel.

You can add Google ReCaptcha to your submit form easily. All you need to do is to update your site key in the Customization panel. Simply go to Appearance → Customize and put the reCAPTCHA Site key placed in the Submissions tab.