Apktool vs dnSpyEx

Apktool is a command-line tool for reverse engineering Android APK files. It can disassemble an app’s resources into a form close to their original structure, then rebuild an app after changes such as translation or permission edits. Its analysis mode attempts to extract resources and the manifest for inspection without rebuilding. Apktool runs on Windows, Linux, and macOS; its official installation guide describes wrapper-script steps for those systems and requires Java 8 or later. Decode options include choosing resource-resolution behavior, skipping resources or source disassembly, and setting a framework directory. Build options include selecting an aapt2 binary, adding a generic Network Security Configuration file, and disabling APK repacking. The Apache license permits redistribution, modification, and integration into another project. Apktool is free, with no pricing tiers stated. Its FAQ says Android devices are not officially supported, and some OEM-modified “Magic APKs” may not decode or build. Builds are unsigned; copying a signature retains only the original APK signature v1 scheme.

dnSpyEx is an unofficial continuation of dnSpy, a debugger and .NET assembly editor for working with assemblies without source code. It can debug .NET Framework, .NET, and Unity game assemblies, with breakpoints, tracepoints, conditional breakpoints, exception breakpoints, and multiple-process debugging. Editing covers metadata and methods or classes in C# and Visual Basic, plus low-level IL method bodies. The project lists C# and Visual Basic decompilers using the ILSpy engine, along with a BAML decompiler and disassembler. Assembly search, class and method usage analysis, caller finding, bookmarks, and project export are also included. A public API supports extensions, and the C# Interactive window can control or script dnSpyEx. The latest stable release listed is v6.6.0, which adds a .NET 10 distribution. It is free under GPLv3. Release notes describe Wine compatibility adjustments for Linux, not native Linux support. Dynamic methods cannot be debugged because of CLR limitations.