I bought it full price from " Memory Doctor Pro " 3 years ago. When i bought my IPhone 5 , it like so many other apps , disappeared.
In retrospect , there is no other app like it , so i had to re purchase it again. I wish it would clean spyware and the cache as well and defrag the device and to automatically learn which apps it could shut down when not in use to conserve RAM .
Asking too much for my repeated purchase , i think not.
Tolice1234 about Memory Probe Pro