The best thing about dexguard is that it protects all apk files of an application from being cracked easily without any other additional software required to be installed in android devices like as "Xposed framework". I have used this product since last two years but i never faced anything bad so far which makes me trust more with its performance than others products available out there. Nothing at present time what could make you dislike if not then just try once because nothing will go wrong after using this tool until now. This helps us protect our applications even we are offline too.