Question: I'm looking for a tool to optimize my mobile app's performance and reduce its size, can you recommend something?

For optimizing your mobile app's performance and reducing its size, Emerge Tools is a great option. This suite of products includes features like Size Analysis to monitor and optimize app size, Performance Analysis to avoid performance regressions, and Launch Booster to speed up app launch times. It works on iOS and Android, integrates with Gradle and Fastlane, and doesn't need access to source code or an SDK. Pricing is flexible with Open Source (free), Indie ($19/month), and Team ($99/month) options, so it should work well for small teams and larger ones with more complex needs.

Another good option is Appfigures, an all-in-one tool for optimizing mobile apps. It includes advanced analytics and intelligence to help you grow your apps through app analytics, App Store Optimization (ASO) tools, and app intelligence. You can track performance metrics like downloads, revenue, and store performance, along with keyword ranks and visibility opportunities. Appfigures offers different pricing tiers and a free trial, so it's a good option for developers and marketers who want to make data-driven decisions to optimize their apps effectively.

Although Optimole is geared for image optimization for web performance, it could also be useful for mobile apps that use lots of images. It offers real-time image optimization, fast image CDN, customizable image sizes, and machine learning compression. That can help you shrink your app's size and launch time for a snappier user experience.

If you need a tool to monitor and diagnose problems in your app, Raygun offers real-time insights into application performance, crash reporting, and error monitoring. It helps you quickly identify and fix problems, which can dramatically improve your app's performance and reliability. With native integrations to popular tools like Slack, GitHub, and Jira, Raygun is geared for developers and performance engineers.