Captain APK

Extract, Decompile & Analyze It

Backup an apps with Captain APK.

This is useful when you want to use a currently unavailable apps on store. (previous version, etc)

If you are an app developer, then you can also use this tool to analyze the origin of distributed apps source.

Wanna analyze it?

Step #1
download : captain apk
extract app.apk,

Step #2
download : dex2jar
d2j-dex2jar -o out.jar app.apk
or d2j-dex2jar -o out.jar app.dex

Step #3
download : jd-gui
open out.jar with jd-gui
and see also files in

that's all you wanted!

source code here @github


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