Absolutely perfect  don't pay attention to the 10 year old CHILDREN that rate your product 1 star. They are too stupid to know what EFFORT is when making an app. I have used this app since its inception and have seen the growth over time between many different kernels on my nexus 6. Works perfectly and is free. Keep going and do what you do best Willi Ye. If you permanently left  I would have shed numerous tears. ( ; --- ;) Kudos to you.
August 15 2016