If you are new to working with a full featured framework like Firemonkey you may be wondering at the size of the apps that Delphi 10.3 Rio Firemonkey generates. The Firemonkey Framework has hundreds of thousands of lines of code that allows you to jump ahead and start building the app you want to build now instead of the bricks in the road to get there. Hopefully this infographic will provide some insight into what makes up an APK/IPA cross platform application deployed from Delphi 10.3 with the FMX framework. The infographic covers Android, IOS, Windows, and Mac OSX apps/packages/libraries/archives created using the Firemonkey framework. Tools that utilize the Firemonkey framework are Delphi 10.3, C++Builder 10.3, and RAD Studio 10.3. The infographic only covers Release mode (something you could deploy to your customers). I have also included a VCL section in the infographic so that you can compare the Windows only VCL framework to the cross platform FMX framework. Also keep in mind that when you use debug information or are in Debug mode your file could be significantly larger. The sizes of the generated files are included in the green circles. There is the normal compiled size and then there is the compressed or packaged size. APK and IPA files are packaged and compressed. The compressed sizes for Windows and Mac OSX were achieved using the 7Zip format. Here is some information directly from the infographic as well about what units are included in a FMX app on Android (it is slightly different on each platform) and how those units effect the size of the deployable file.