Android

See apk permissions:

aapt l -a app.apk

Convert Android xml to xml using androguard:

androaxml -i content/AndroidManifest.xml

Check certificates:

keytool -printcert -file contents/META-INF/CERT.RSA

Decompile with androguard :

androdd.py -i FILENAME.apk -o OUTPUT_DIR

Decompile with jadx:

jadx -d out classes.dex

Compare two APK with androguard :

Androsim.py -i FILENAME_1.apk FILENAME_2.apk -c ZLIB -n

disassemble

apktool d app.apk

mv app.apk app.zip
unzip app.zip
dex2jar classes.dex
.... now...
unzip classes_dex2jar.jar
jad -s java *.class
... or ....
open jar file in JD-GUI