what is the differences between the functions of the trial version and the purchased version? is there any restrictions in the trial version?

   Which program are you asking about?
   For most of our programs. the only difference is a 30 day time limit.  The trial version for 30 days is fully functional.  After 30 days, many of the features are disabled.
   Other programs have a 10 second countdown at the beginning and other that than, they are fully functional.
   Only one of our programs, A1Click Ultra PC Cleaner, has a restriction in its feature and that is that it only cleans ten items at a time.