New design for SimBooster

The Simple Way to Speed Up Your Mac!

SimBooster is an all-in-one package that includes a variety of system tools to help you clean and protect your Mac.
For slow Macs, SimBooster can release RAM to increase the processing speed. It can also help users protect their personal data from malicious cookies. Users who suffer from small hard drive space, SimBooster can clean trash, logs, and cache files to free up hard drive space. Its Duplicates and Old Files Finder can further clean up more space for users. Additionally, Simbooster can clean temporary files of web browser and get rid of unwanted apps or files.

Key Feature:

System Cleanup
SimBooster scans your system for the 8 different types of junk.

Photo Sweeper
Finding and grouping similars, providing different comparison methods.

iTunes Junk Cleanup
Use SimBooster to clean unwanted iOS Device backups, Applications, Software Updates, and Broken Downloads.

Adware Cleanup
SimBooster Makes it easy to remove all adwares and protect your web browser .

Privacy Cleanup
Use SimBooster to clean temporary files of web page to protect personal privacy frequently. It can also free valuable disk space to speed up your browser.

Reclaim more disk space by using our Uninstaller to seek out and remove application related files instead of simply dragging an application to the Trash.

Duplicates Finder
Find identical files quickly and accurately. Smart algorithm is used to help users select unneeded duplicate files and remove them, meanwhile will making sure that at least one instance of each file will be kept safe.

Large Files Finder
Find all those huge files you’d completely forgotten about and remove the ones you no longer need.

You can delete unwanted files permanently. No one can retrieve your confidential information even if they use your Mac.

Startup Optimization
Manage your startup items to optimize the OS X boot speed.

Memory Cleaner
Clean to regain more available RAM and make applications start faster.

What's New

Version 2.9.9

Fixed the startup bugs

Customer Reviews

Well-Designed Application, but with some problems


In terms of aesthetics, the app is beautifully designed. It has a very pleasing interface and is very easy to use. Categories are seperated logically and instructions are simple enough that most people should be able to use this app with no problem. At the same time, it contains many powerful tools. These functions will help people speed up their computer with little additional effort. There are also no annoying adds or pop-ups that I saw, which is very nice. With all this said, there is one major problem. All of those extra tools cost money!!! If you use this version, all you get are the basic tools. This app by itself is almost useless. However, it seems that buying the rest of the tools is not super expensive, and looks to be super helpful, so I recommend that if you have the money, you should buy the full version, it’s well worth the money.

Great App!!!


My computer has sped up so much since I have downloaded it. I can really see the effects of using it and not using! A MUST get for your mac! A few days ago, my mac only had 10 gigs left of space on my computer. After installing this app, it was able to find a folder that had a huge file size (all the stuff I deleted for someone reason transfered into the folder)! It was a hidden folder, so without Simbooster, I would have never found it! This app has a great interface which is ridculously easy to use.

However, I would like to suggest 1 improvement for this app: They should explain what is the difference between the ‘eraser’ and the system clean up. If eraser deletes a certain file permanantely, does the system clean up also do that as well?

I personally find this an amazing app, it does all I need for free :)

Not bad for a free app


Seamless interface and simple enough for anyone to use! The free app offers browser data cleanup, system cleanup, and memory optimization. App is worth downloading for the one-click cache cleanup alone; a must-have function for those who regularly use multiple browsers and are seeking a simple solution to keep them cleared. The system cleanup option cleared out 1GB of unnecessary files from my 60GB HD! The memory optimization option is also pretty handy; I’m keeping the Smart Auto Optimization option checked so my RAM can be constantly freed up in the background. Additional features like duplicates finder, uninstaller, and large files finder require paid upgrades. Still a lot of value for a free app!


9.9 MB
English, Japanese, Simplified Chinese
Age Rating
Rated 4+


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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