No specific info about version 3.0. Please visit the main page of SystemDoctor on Mac Informer.
The first Memory Cleaner on the Mac App Store!
iFreeMem allows you to optimize the memory of your Mac system.
Analyze disk space usage and find large-sized files.
Disk Doctor PRO is a professional, powerful disk cleaner tool for Mac OS.
Removes unnecessary data such as logs, caches, localizations and emails.