Lead ads are a type of online advertising specifically designed to capture potential customer information directly within the ad itself, streamlining the process for businesses. They typically feature a form that users can fill out with minimal effort, often pre-filling information from their profiles to reduce friction. This format is especially useful for mobile users, making it easy to sign up for newsletters, promotions, or inquiries. Lead ads are commonly used on platforms like Facebook and Instagram, helping businesses generate high-quality leads efficiently.