Aarong, I apologize. I thought you we referring to juice defender as the app not compatible with your razr. I did not realize you were referring to CPU sleeper. It also says that it is not compatible with my razr because it was not designed for our kind of processors, although if you read further in the app description, it states it may work on other devices.
In addition, that app will only work if you are rooted. So unless you are rooted, it is not an app I would try. If you are rooted, then you could try it. It appears it has worked for some on their Razrs.
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