Top rated in System Optimization

SmartMemoryCleaner
1.1
SmartMemoryCleaner - Let your Mac work faster!
My Disk Cleaner
7.1.16
FREE
Free system maintenance tool.
MagicanLite
1.0
FREE
Magican Lite is a free system monitor utility.
NCbackgrounder
1.2.1
Customize the Notification Center on OS X 10.8 Mountain Lion.
Diskeeper
2.1
Quick tour of the disk tool.By browsing the disk to generate an easy-to-use disk usage chart where you can easily find files and folders that you......
Memory Defrag
1.5
It lets you defragment the RAM memory of your computer.
memory purge
1.3
FREE
App to speed up your Mac, stop memory leaks, and increase free RAM.
RAM Cleaning
RAM Cleaning will help to quickly speed up your computer.
Detox My Mac
1.4
FREE
Clean up, speed up and optimize your Mac.
AppPolice
1.1
FREE
This program lets you limit the CPU usage for any processes within your Mac.
Software.com
1.9
FREE
Improve your Mac performance.
MacReviver
2.7
Get rid of unneeded data and improve the performance of your system.
HDCleaner
1.1.2
System optimization tool designed to free up computer space.
Memory Boost
1.01
FREE
Memory cleaner application for Mac OS X.
SimBooster
2.9.9
Get rid of unnecessary data and improve the performance of your Mac.
Stellar Volume Optimizer
2.0.0.0
This is an essential tool that checks and rebuilds corrupted Mac volumes.
Quick Cleaner
1.0.2
FREE
It scans your computer for unnecessary files and offers to remove them.
Disk App
1.2.3
App that cleans up space in your hard drive.
DiskKeeper
1.9.17
It works as a disk cleaner, apps uninstaller, file remover...
App Fixer
1.7
Fix Mac programs by deleting their correspondent PLIST files.
USBclean
3.4
USBclean quickly and easily removes all those pesky junk and ghost files from your external Windows formatted USB drives....
K9-MacOptimizer
9.0
This program helps you optimize the performance of your Mac.
iDoctor
2.2
It?s like having your own, personal Apple-Certified Support Pro.
Disk Cartography
1.4
FREE
Analyzes disks and directories, removes large files and folders.
OS Cleaner
3.1.2
FREE
OS Cleaner scans your system in order to remove junk files.