You're working with an online car hire agency on a new ad campaign. They use Campaign Manager 360 and want to use a Google solution to measure app conversions. They're comfortable with coding. What solution would you recommend to meet their needs?

Google Analytics 4 (GA4) is the recommended solution because it is Google's next-generation measurement solution, designed for both websites and apps. It offers robust app conversion tracking capabilities and supports custom event implementation, which aligns with the client's comfort with coding. GA4 provides a unified view of user journeys across platforms, essential for understanding the full impact of ad campaigns. Google Play installs only tracks app installations from the Google Play Store and doesn't provide comprehensive in-app conversion tracking or cross-platform insights. Looker Studio is a data visualization tool, not a data collection or measurement solution for app conversions. A third-party SDK could work, but GA4 is a Google solution, offering seamless integration with Campaign Manager 360 and other Google advertising products, making it a more integrated and efficient choice for a client already using Google platforms.