https://www.emergetools.com/blog The Emerge blog is dedicated to exploring the latest advancements and trends in mobile app development. From the latest in mobile technology to cutting-edge optimization strategies, we cover it all. Stay up-to-date with our informative articles, thought-provoking analysis, and engaging discussions that delve into the most pressing issues in the world of mobile app performance. en Jul 08 2025 16:00:00 GMT https://blog.sentry.io/monitor-reduce-mobile-app-size-analysis-early-access/ https://blog.sentry.io/monitor-reduce-mobile-app-size-analysis-early-access/ Size Analysis is now available in Sentry Early Access. Nov 06 2025 16:00:00 GMT https://blog.sentry.io/an-open-source-sdk-for-finding-dead-code/ https://blog.sentry.io/an-open-source-sdk-for-finding-dead-code/ A new open source tool to find dead code for iOS and Android apps. Jul 08 2025 16:00:00 GMT https://blog.sentry.io/open-source-tool-speed-up-ios-app-launch/ https://blog.sentry.io/open-source-tool-speed-up-ios-app-launch/ A new open source tool to generate order files for iOS apps. 23 Jun 2025 16:00:00 GMT https://www.emergetools.com/blog/posts/emerge-tools-is-joining-sentry https://www.emergetools.com/blog/posts/emerge-tools-is-joining-sentry Emerge Tools is joining Sentry to build the best mobile tooling in the world. 6 May 2025 13:00:00 GMT https://www.emergetools.com/newsletter/april-2025 https://www.emergetools.com/newsletter/april-2025 Hermes bytecode stripping, Custom Precision for Android, and more... 30 Apr 2025 17:30:00 GMT https://www.emergetools.com/newsletter/march-2025 https://www.emergetools.com/newsletter/march-2025 Snapshot UI updates, Gradle Plugin Update, Tinder Case Study, T-Life breakdown... 31 Mar 2025 17:30:00 GMT https://www.emergetools.com/newsletter/february-2025 https://www.emergetools.com/newsletter/february-2025 Hacker News on the App Store, module attribution for app clips, Binance breakdown... 28 Feb 2025 17:30:00 GMT https://www.emergetools.com/blog/posts/the-emerge-cli https://www.emergetools.com/blog/posts/the-emerge-cli Detailing the Emerge CLI, a new tool for mobile developers to integrate Emerge into their workflow. 6 Feb 2025 17:30:00 GMT https://www.emergetools.com/newsletter/january-2025 https://www.emergetools.com/newsletter/january-2025 Build Distribution for free, Hacker News iOS beta, UBS banking app analysis... 31 Jan 2025 17:30:00 GMT https://www.emergetools.com/newsletter/december-2024 https://www.emergetools.com/newsletter/december-2024 End of year recap, Bring Your Own Snapshots, Intesa Sanpaolo app analysis... 20 Dec 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/bring-your-own-snapshots https://www.emergetools.com/blog/posts/bring-your-own-snapshots How to upload any images to Emerge's Snapshots 16 Dec 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/openai-on-mobile-development-previews-and-snapshot-testing https://www.emergetools.com/blog/posts/openai-on-mobile-development-previews-and-snapshot-testing A deep dive into how OpenAI approaches mobile development, previews, and snapshot testing in their mobile apps 10 Dec 2024 19:30:00 GMT https://www.emergetools.com/blog/posts/unit-test-xcode-previews https://www.emergetools.com/blog/posts/unit-test-xcode-previews Enhance Xcode Previews with Unit Test Coverage 5 Dec 2024 17:30:00 GMT https://www.emergetools.com/newsletter/november-2024 https://www.emergetools.com/newsletter/november-2024 Various Reaper improvements, Snapshot Glossary, Order File improvements, Calling hidden Swift functions... 26 Nov 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/calling-hidden-swift-functions https://www.emergetools.com/blog/posts/calling-hidden-swift-functions Apple frameworks hide some public functions through the SPI, this post reveals how to find and use them in your projects 25 Nov 2024 17:30:00 GMT https://www.emergetools.com/newsletter/october-2024 https://www.emergetools.com/newsletter/october-2024 Introducing Build Distribution, Snapshot History, Preview Driven Development, Proton Deep Dive... 31 Oct 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/preview-driven-development https://www.emergetools.com/blog/posts/preview-driven-development How preview driven development can help you make better apps 30 Oct 2024 17:30:00 GMT https://www.emergetools.com/deep-dives/proton-vpn https://www.emergetools.com/deep-dives/proton-vpn Emerge Tools analysis of Proton VPN app size changes 24 Oct 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/are-android-apps-really-that-much-smaller-than-ios https://www.emergetools.com/blog/posts/are-android-apps-really-that-much-smaller-than-ios An in-depth analysis of Android vs. iOS app sizes and why Android apps might be larger than they appear 10 Oct 2024 17:30:00 GMT https://www.emergetools.com/newsletter/september-2024 https://www.emergetools.com/newsletter/september-2024 Our Hacker News app launch, Droidcon NY 2024, macOS Snapshots, the Panels wallpaper app... 30 Sept 2024 17:15:00 GMT https://www.emergetools.com/blog/posts/the-memory-leak-an-xcode-detective-story https://www.emergetools.com/blog/posts/the-memory-leak-an-xcode-detective-story A deep-dive into debugging on iOS 11 Sep 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/emerge-joining-open-source-pledge https://www.emergetools.com/blog/posts/emerge-joining-open-source-pledge Emerge Tools is proud to join the Open Source Pledge, supporting the projects that make our work possible. 6 Sep 2024 17:30:00 GMT https://www.emergetools.com/blog/posts/open-sourcing-emerge-tools-hackernews-app https://www.emergetools.com/blog/posts/announcing-emerge-tools-hackernews-app Introducing our new open-source Hacker News client for Android, built to dogfood Emerge Tools products and showcase best practices in Android development. 4 Sep 2024 17:30:00 GMT https://www.emergetools.com/newsletter/august-2024 https://www.emergetools.com/newsletter/august-2024 One year of Bits and Bytes, network monitoring, and finding dead code in a dead app... 30 Aug 2024 19:15:00 GMT https://www.emergetools.com/deep-dives/apollo https://www.emergetools.com/deep-dives/apollo Using Reaper to find out how much dead code is in Apollo 16 Aug 2024 17:30:00 GMT https://www.emergetools.com/newsletter/july-2024 https://www.emergetools.com/newsletter/july-2024 Mobile Mahjong, Reaper on Android, automatically optimize images 📚... 31 July 2024 15:45:00 GMT https://www.emergetools.com/blog/posts/swift-async-await-the-full-toolkit https://www.emergetools.com/blog/posts/swift-async-await-the-full-toolkit Get a full understanding of everything Swift concurrency has to offer. 22 July 2024 16:25:00 GMT https://www.emergetools.com/newsletter/june-2024 https://www.emergetools.com/newsletter/june-2024 New Size Analysis Insights, Compose Preview Parameters, and SwiftData vs. Realm ⚖️... 27 June 2024 20:45:00 GMT https://www.emergetools.com/blog/posts/make-your-ios-app-smaller-with-dynamic-frameworks https://www.emergetools.com/blog/posts/make-your-ios-app-smaller-with-dynamic-frameworks Benchmarking the performance of SwiftData vs. Realm to help you decide on your persistence framework. 20 Jun 2024 17:00:00 GMT https://www.emergetools.com/newsletter/may-2024 https://www.emergetools.com/newsletter/may-2024 Open Source and Indie tiers, Android Snapshots 1.0, and Rabbit R1 deep dive 🔬... 30 May 2024 19:00:00 GMT https://www.emergetools.com/deep-dives/rabbit-r1 https://www.emergetools.com/deep-dives/rabbit-r1 A deep dive into the Rabbit R1 APK 2 May 2024 21:30:00 GMT https://www.emergetools.com/newsletter/april-2024 https://www.emergetools.com/newsletter/april-2024 ReaperAI, publicly shareable links, and Deep Dish Swift 🍕... 30 Apr 2024 16:00:00 GMT https://www.emergetools.com/newsletter/march-2024 https://www.emergetools.com/newsletter/march-2024 Performance Profiles, Emerge gets a facelift, and folklore... 28 Mar 2024 19:00:00 GMT https://www.emergetools.com/blog/posts/make-your-ios-app-smaller-with-dynamic-frameworks https://www.emergetools.com/blog/posts/make-your-ios-app-smaller-with-dynamic-frameworks How to make your iOS apps smaller using Dynamic Frameworks 20 Mar 2024 18:30:00 GMT https://www.emergetools.com/deep-dives/general-motors https://www.emergetools.com/deep-dives/general-motors Deep dive into the how General Motors builds their apps 4 Mar 2024 20:30:00 GMT https://www.emergetools.com/newsletter/february-2024 https://www.emergetools.com/newsletter/february-2024 Reaper enhancements, Extraterrestrial life, and Apple commentary... 29 Feb 2024 19:00:00 GMT https://www.emergetools.com/blog/posts/how-to-use-variadic-view https://www.emergetools.com/blog/posts/how-to-use-variadic-view An overview of Variadic View in SwiftUI include a practical use case for Emerge snapshot tests, and why it is safe to use this private API in production. 26 Feb 2024 20:30:00 GMT https://www.emergetools.com/glossary/app-thinning https://www.emergetools.com/glossary/app-thinning An explanation of App Thinning in iOS development. 23 Feb 2023 17:00:00 GMT https://www.emergetools.com/deep-dives/twitter-vs-x https://www.emergetools.com/deep-dives/twitter-vs-x Deep dive into the transition from Twitter to X. 22 Feb 2024 17:00:00 GMT https://www.emergetools.com/newsletter/january-2024 https://www.emergetools.com/newsletter/january-2024 Reaper enhancements, Extraterrestrial life, and Apple commentary... 26 Jan 2024 20:30:00 GMT https://www.emergetools.com/deep-dives/alltrails https://www.emergetools.com/deep-dives/alltrails Deep dive into AllTrails, the 2023 iPhone app of the year winner. We look at what changed in 2023 for iOS and Android. 24 Jan 2024 17:30:00 GMT https://www.emergetools.com/deep-dives/acorns https://www.emergetools.com/deep-dives/acorns Deep dive into how the Acorns iOS app changed its architecture in 2023 03 Jan 2024 17:30:00 GMT https://www.emergetools.com/newsletter/december-2023 https://www.emergetools.com/newsletter/december-2023 Emerge Tools newsletter for December 2023 22 Dec 2023 17:00:00 GMT https://www.emergetools.com/blog/posts/symbolicating-swiftui-and-any-apple-framework-part-2 https://www.emergetools.com/blog/posts/symbolicating-swiftui-and-any-apple-framework-part-2 How we managed to symbolicate SwiftUI crash logs. 12 Dec 2023 15:30:00 GMT https://www.emergetools.com/newsletter/november-2023 https://www.emergetools.com/newsletter/november-2023 Emerge Tools newsletter for November 2023 16 Nov 2023 20:00:00 GMT https://www.emergetools.com/glossary/swift-protocols https://www.emergetools.com/glossary/swift-protocols An explanation of Swift Protocols in iOS development. 24 Oct 2023 15:00:00 GMT https://www.emergetools.com/newsletter/october-2023 https://www.emergetools.com/newsletter/october-2023 Emerge Tools newsletter for October 2023 12 Oct 2023 19:00:00 GMT https://www.emergetools.com/blog/posts/comparing-top-analytics-sdks-for-ios https://www.emergetools.com/newsletter/september-2023 Emerge Tools newsletter for Sweptember 2023Comparing the size and performance impacts of the most popular analytics SDKs for iOS 4 Oct 2023 16:00:00 GMT https://www.emergetools.com/newsletter/september-2023 https://www.emergetools.com/newsletter/september-2023 Emerge Tools newsletter for September 2023 13 Sep 2023 20:00:00 GMT https://www.emergetools.com/blog/posts/symbolicating-swiftui-and-any-apple-framework https://www.emergetools.com/blog/posts/symbolicating-swiftui-and-any-apple-framework How we managed to symbolicate SwiftUI crash logs. 7 Sep 2023 15:30:00 GMT https://www.emergetools.com/glossary/fastlane https://www.emergetools.com/glossary/fastlane An explanation of fastlane. 6 Sep 2023 15:00:00 GMT https://www.emergetools.com/deep-dives/peacock https://www.emergetools.com/deep-dives/peacock Deep dive into the Peacock app and how changing from React Native to native affected app performance. 17 Aug 2023 15:30:00 GMT https://www.emergetools.com/blog/posts/dead-code-detection-with-reaper https://www.emergetools.com/blog/posts/dead-code-detection-with-reaper An exploration of dead code in iOS apps and how runtime detection expands the amount we can find. 10 Aug 2023 15:30:00 GMT https://www.emergetools.com/deep-dives/candy-crush-saga https://www.emergetools.com/deep-dives/candy-crush-saga Deep dive into the Candy Crush Saga app and the impact of having many files on iOS 17 Jul 2023 15:30:00 GMT https://www.emergetools.com/deep-dives/threads https://www.emergetools.com/deep-dives/threads Deep dive into the how the Threads app was made. 10 Jul 2023 15:30:00 GMT https://www.emergetools.com/blog/posts/moving-from-cocoapods-to-swift-package-manager https://www.emergetools.com/blog/posts/moving-from-cocoapods-to-swift-package-manager How we built ETTrace with Swift Package Manager. 28 Jun 2023 11:00:00 GMT https://www.emergetools.com/blog/posts/ettrace-reliable-ios-profiling-with-flamecharts https://www.emergetools.com/blog/posts/ettrace-reliable-ios-profiling-with-flamecharts Remember this open source profiler the next time Instruments crashes. 27 Apr 2023 11:00:00 GMT https://www.emergetools.com/blog/posts/announcing-android-performance-testing https://www.emergetools.com/blog/posts/announcing-android-performance-testing Announcing Emerge's Android Performance Testing Suite - built to provide meaningful, controllable testing results to mobile. 1 Feb 2023 15:00:00 GMT https://www.emergetools.com/glossary/split-apks https://www.emergetools.com/glossary/split-apks An explanation of what Split APKs are and how they make Android apps smaller. 31 Jan 2023 15:00:00 GMT https://www.emergetools.com/glossary/ui-automator https://www.emergetools.com/glossary/ui-automator An explanation of UI Automator tests. 31 Jan 2023 15:00:00 GMT https://www.emergetools.com/blog/posts/how-order-files-speed-up-protocols https://www.emergetools.com/blog/posts/how-order-files-speed-up-protocols How to easily make the slowest operation in Swift ~20% faster with an order file. 25 Jan 2023 11:00:00 GMT https://www.emergetools.com/glossary/dynamic-frameworks https://www.emergetools.com/glossary/dynamic-frameworks An explanation of dynamic frameworks in iOS development. 24 Jan 2023 15:00:00 GMT https://www.emergetools.com/glossary/static-frameworks https://www.emergetools.com/glossary/static-frameworks An explanation of static frameworks in iOS development. 24 Jan 2023 15:00:00 GMT https://www.emergetools.com/glossary/dyld https://www.emergetools.com/glossary/dyld An explanation of what the "dynamic link editor" (dyld) does in macOS and iOS. 11 Jan 2023 15:00:00 GMT https://www.emergetools.com/blog/posts/static-vs-dynamic-frameworks-ios-discussion-chat-gpt https://www.emergetools.com/blog/posts/static-vs-dynamic-frameworks-ios-discussion-chat-gpt A detailed review of what ChatGPT thinks of Static vs. Dynamic Frameworks on iOS with an examination of what it got right and wrong. 14 Dec 2022 13:27:00 GMT https://www.emergetools.com/blog/posts/how-xcode14-unintentionally-increases-app-size https://www.emergetools.com/blog/posts/how-xcode14-unintentionally-increases-app-size Examining why some popular iOS apps suddenly got bigger after releasing with Xcode 14. 10 Nov 2022 05:31:00 GMT https://www.emergetools.com/blog/posts/improve-popular-iOS-app-startup-times https://www.emergetools.com/blog/posts/improve-popular-iOS-app-startup-times A detailed look at the startup times for 5 popular apps from the App Store and actionable insights for how they can be improved. 14 Sep 2022 03:31:00 GMT https://www.emergetools.com/blog/posts/iOS16LaunchTime https://www.emergetools.com/blog/posts/iOS16LaunchTime WWDC22's state of the union promised to bring some big launch time improvements 06 Jul 2022 00:00:00 GMT https://www.emergetools.com/blog/posts/DyldInterposing https://www.emergetools.com/blog/posts/DyldInterposing Swizzling C functions in compiled iOS apps with dyld interposing. 24 May 2022 00:00:00 GMT https://www.emergetools.com/blog/posts/FasterAppStartupOrderFiles https://www.emergetools.com/blog/posts/FasterAppStartupOrderFiles An in depth look at how long it takes to read an app binary from disk, and why order files make apps launch faster. 27 Jan 2022 00:00:00 GMT https://www.emergetools.com/blog/posts/CostOfAByte https://www.emergetools.com/blog/posts/CostOfAByte A summary of where energy is consumed when downloading an app and the carbon footprint of downloads at scale. 06 Jan 2022 00:00:00 GMT https://www.emergetools.com/blog/posts/SwiftProtocolConformance https://www.emergetools.com/blog/posts/SwiftProtocolConformance A deep dive into the Swift runtime to see how protocol conformance checks slow down post-main startup time as your binary size increases. 01 Dec 2021 00:00:00 GMT https://www.emergetools.com/blog/posts/iOS15LaunchTime https://www.emergetools.com/blog/posts/iOS15LaunchTime The most intriguing feature from WWDC21 was buried deep in the Xcode 13 release notes: 23 Jun 2021 00:00:00 GMT https://www.emergetools.com/blog/posts/SwiftReferenceTypes https://www.emergetools.com/blog/posts/SwiftReferenceTypes The app launch experience is the first impression you make on a user. Every millisecond they wait for your app to start is valuable time… 04 Mar 2021 00:00:00 GMT https://www.emergetools.com/blog/posts/7AppsThatCouldSaveYou500MB https://www.emergetools.com/blog/posts/7AppsThatCouldSaveYou500MB An in-depth size analysis of top iOS apps 14 Jan 2021 00:00:00 GMT