您合作的一家在线汽车租赁公司将投放一个新的广告系列。他们已经在使用 Campaign Manager 360，希望再增加一个 Google 解决方案来衡量应用转化效果。他们比较擅长编码。您会给他们推荐下面哪个解决方案来满足其需求？

Google Analytics 4 (GA4) is the recommended solution because it offers robust app measurement capabilities, including detailed event-based tracking and conversion measurement, and is designed to integrate seamlessly with Campaign Manager 360. Its flexible data model and extensive APIs are well-suited for companies with coding expertise, allowing for custom implementations and advanced analysis of app user behavior and conversions. "通过 Google Play 安装的应用" (Apps installed via Google Play) is a feature within Google Play, not a standalone measurement solution for Campaign Manager 360. Looker Studio is a data visualization tool, not a data collection or measurement solution itself. A "第三方 SDK" (third-party SDK) could work, but GA4 is a Google-native solution that provides better integration and a unified view across web and app, which is often preferred for companies already using other Google products.