Form to HubSpot add-on for Google™ Forms integrates with HubSpot, allowing you to create contacts while your form is submitted.

Anyone who interacts with your business can be saved as a contact in HubSpot. 
Examples of contacts include visitors that convert on a form, visitors who contact your chat team, or potential customers that your team met during an event.

A good contact database will allow your team to easily record and retrieve information on them, keeping everyone updated.

There are different ways to create contacts in HubSpot - One such method is to create a Google Form and embed into your website and then accept the basic input from your customers like the First name (mandatory), Phone, Email etc. When a new visitor fills in and submits a HubSpot connected Google Form, a contact record for their email address will be created in HubSpot CRM automatically by the add-on.

To know more about HubSpot contacts visit: https://knowledge.hubspot.com/contacts/create-contacts

Free Features/Limitations:
 * Create 25 contacts/month

Premium Features:
 * Create any number of contacts as per your HubSpot app subscription

Video help: https://youtu.be/1aDs5M2DV64
For more details about quotas visit: https://developers.google.com/apps-script/guides/services/quotas