Apptopia is a mobile app intelligence company that uses public and proprietary data along with machine learning models to provide insights about the app market. They have transformed their analytics capabilities by moving from slow single-machine models to using Apache Spark on large clusters, allowing them to train and score models much faster. Going forward, Apptopia aims to continue scaling their platform while focusing on key factors like app similarity, bundledness, and competitiveness to better understand the complex, dynamic global app market.