This webinar covered how to conduct A/B testing on mobile apps to address challenges like high user drop-off rates. It discussed setting up mobile experiments in Optimizely by making variations, setting audiences and traffic allocation, goals, and testing. Integrating A/B testing into the development process was also covered, with best practices like planning tests in sprints and using phased rollouts. The webinar aimed to explain how to set up and analyze mobile experiments to validate new features and improve key metrics.