The Gravity Forms plugin may be improved with the addition of geolocation and mapping capabilities by using an extension called Gravity Geolocation. Gravity Geolocation is an extension for Gravity Forms that adds five new field types to the existing set of fields and is driven by the Google Maps API.
Flawless Integration, Easy Geolocation, Powered By Google Maps API
Gravity Geoloaction Pricing: How much does the Gravity Geolocation costs?
Gravity Geolocation offers 4 types of pricing plans. Those are Personal, Extended, Developer and Lifetime. The price of those plans are $49, $129, $199 per year respectively. And the price of the lifetime plan is $299 for lifetime. You can choose the plan which is the best fit you.