Monitor and reduce your mobile app size with Size Analysis (beta)

Size Analysis, now in beta on Sentry, is a tool designed to help developers monitor and reduce the size of mobile apps by identifying and addressing unnecessary bloat. Originally developed by Emerge Tools, which Sentry acquired, Size Analysis has been utilized by major companies like Spotify and Tinder to ensure optimal app performance. The tool is compatible with both iOS and Android apps, including those using frameworks like React Native or Flutter, and integrates with CI systems to catch size issues early in the development process. The beta version introduces features such as the Mobile Builds tab, Insight Diff, X-Ray Diff, and Quick Diffs, allowing developers to compare builds, visualize changes, and pinpoint areas for optimization. Using Size Analysis, developers can easily identify and remove redundant files or symbols, as demonstrated by the reduction of the Firefox iOS app's size by 67 MB. This reduction is crucial as larger app sizes can negatively impact download rates, especially in network-constrained environments. The blog highlights that app size issues are widespread due to limited existing tooling, and Sentry's Size Analysis aims to address this gap by providing an intuitive platform to streamline app size management.