It worked with a Blu Dash 5.5 with same mtk6582, just take a backup of your recovery with rashr. I think that this app can´t cause a brick, I tried with newer processors, no results but just this app closes access to recovery partition temporarily untill flashing backup again.
Well, i did try it and it bricked my phone becouse locked bootloader i totaly forgot about it. But i unbricked it with sp flash tool and when i want to unlock bootloader using fastboot and adb it just say error i dont know which one now. (sorry for my bad english)