LSA often produces more phone leads because the format is built around connecting customers directly with local service providers, while Google Ads can send people to a website where they can fill out a form, browse services, or take another conversion action. LSA also tends to reach people who are actively looking for a service and are ready to contact a business.
Google Ads gives you more flexibility in how you capture leads, so website forms and landing-page conversions can make up a larger share of your results. The difference can also depend on your ad copy, landing page, call options, and how customers prefer to contact businesses in your industry.
So, more phone leads from LSA and more website leads from Google Ads does not necessarily mean one platform is better. Compare qualified leads, booked jobs, close rates, and revenue to see which source is actually performing better.