Yasu (Yet another system utility) is an Apple OS X maintenance utility developed to do a certain group of tasks quickly with just a few clicks, instead of typing a bunch of complex commands in the Terminal application.
Yasu is Free
With the release of OS X Mavericks, I’ve decided to suspend Yasu development for a while. That means the app is 100% free for all users, though you’re welcome to donate if you’d like. Use this email and code to register the app. Support is not provided without a donation.
Yasu & Mavericks
In the testing I’ve done using Yasu on Mavericks, it has performed well, so I believe it’s okay to use Yasu on Mac OS 10.9.x. Of course, I have to provide the disclaimer that I can’t guarantee 100% compatibility… If you decide to use Yasu on Mavericks, you’re doing it at your own risk.
Still using OS X 10.2 Through 10.3.9?
If you haven’t upgraded beyond OS X 10.4 yet, you can download a free version of Yasu that works on those earlier systems by clicking here.
What Yasu Is…
Yasu is a Mac OS X application that allows users to easily run several of the system level Unix shell scripts which perform maintenance routines and clear many of the cache files used by OS X.
Yasu was developed to be a user friendly, simple, first line of attack for a Mac that is acting strangely. Often, a complete purge of the system cache files on a Mac will solve odd behavior.
What Yasu Isn’t…
Yasu isn’t meant for total system maintenance, and isn’t a replacement for the Unix “cron” or “launchd” daemons. Yasu works great on its own for certain things, but you should use it with other utilities, like DiskWarrior, TechTool Pro, or Apple’s Disk Utility, to keep your system healthy.
So What’s the Difference?
The question I get asked most is “Why should I use Yasu instead of one of those other utility applications?” There are many utilities to choose from that have the same features as Yasu, and then some.
But often the “and then some” features are way too much for the average user. Tweaking some obscure Finder setting really doesn’t matter when it comes to keeping your Mac in tip top shape.
I purposely created Yasu to only have the features that are most crucial for maintaining your Mac — all in one window. Options aren’t spread out across a bunch tabs or windows to switch back and forth. Everything is right here in one window, ready to run when you say go.
Less is more in this case.
How to Use Yasu
After setting the options you want to run, and clicking the “OK” button, you’ll be asked to enter a password if you’ve selected options that need it. Enter an administrator user name & password and click “OK” — or hit the “Return” or “Enter” key.
If you’re logged in as a “regular” (non-admin) user, you’ll only be allowed to perform the standard user options and no password dialog will appear when you click “OK”.
Note: Yasu can take a long time to run. It may seem like the application isn’t doing anything, but it is. It should be left alone to complete the tasks you have chosen. It’s recommended you not run other applications while performing maintenance with Yasu. You should also know that if you’ve selected “Restart” or “Shutdown” when finished, your Mac will do just that without warning once everything is done.
Once you click the “OK” button, Yasu displays a progress panel and begins performing each task you’ve selected, informing you what’s happening each step of the way. Once done, Yasu will finish off with the option you selected in the finish menu.
And that’s all there is to it…
Don’t Take My Word For It
Check out what these awesome people have to say about Yasu, and how they use it in regular troubleshooting and maintenance themselves.
- Randy B. Singer – macattorney.com
- Dr. Smoke’s – thexlab.com
- James "MacManX" Huff – macmanx.com
- Mike Vincenti – mikevincenti.com
- Natalia Nowak – mac360.com
Okay… You’ve made it this far. You can read the release notes if you haven’t had enough.