How can I use DexGuard to obfuscate my apk? I know how to enable proguard and its customization. Can anyone suggest a good tutorial?
You also could try DexProtector (http://dexprotector.com) out, it has trial period. And it is much easier in configuration than DexGuard.
N.B. I am Licel's CEO, thus I am affiliated with DexProtector.