I won't to make my android application almost impossible to reverse engineer. I have tried using ProGuard but since it doesn't encrypt my strings at all, it is not very useful for me.
I have seen this great obfuscator called Zelix KlassMaster, but I cannot afford it at this time.
Which methods can I use to manually obfuscate my application, or are there any classes that can help me like Mono.Cecil for .NET?
Thanks in advance!