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Blitz (formerly known as Bokeh) is for people who have software with big needs. When your Mac is clogged with lots of extra processes, the amount of power it can give to any one program is lessened. Running an intensive process like Photoshop filter or a 3D render can be sped up with Blitz.

Blitz freezes applications, leaving them taking absolutely no CPU, and leaving more processing power for your other applications. Blitz also implements a "Focus Freeze", letting you focus all CPU power on a single application.

What's New

Version 2.0.1:
  • Fixing a crash that was affecting some users when they tried to open the menu.


Mac OS X 10.6.6 or later

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Blitz User Discussion

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JetsSetter Member IconReview+179

I began to notice that some applications on my Mac from time to time are waging a fierce fight for the computer resources. So today I would like to express my gratitude to the wonderful program that helps me work more efficiently.

This "miracle" is a utility Blitz, designed for all users running heavy applications.They are sometimes really difficult to roll over among many smaller processes, thus, contribute to this wide variety of factors: from the amount of RAM, and ending with high-speed characteristics of the hard disk.

In this case, Blitz can focus on this "monster", resulting in a large layout in Photoshop or three-dimensional rendering to be processed relatively quickly. Utility artificially inhibits the "all other processes in the system by allocating all available resources for a specific process or processes, if more than one.

Immediately after launching the application in the menu bar you will see its icon. If you click the mouse on it, then the menu will display a list of all running applications (for obvious reasons, the system processes the utility does not obey), but at the very top of the list - the current program.

If you select this menu item «Focus on», then next to the names of all other programs will pause icon, their windows will be slightly blurry, but take away their resources in this case the Finder. Undo can focus point «Defocus».

The user can "slow down" certain applications by selecting them in the list.

Subjectively, on my computer, I felt a performance boost!

I will say this - I was satisfied with the program Blitz.

Thanks to the developers for a very useful product!

Best Regards Vitaly!

Reply0 replies
Version 2.0.1
Tachy0n Member IconComment+34

No free upgrade for us long-suffering 1.1.1 owners?

Reply0 replies
Version 2.0
Gryphonent Member IconComment+444

I switched to App Tamer. Blitz is dead. I'm tired of throwing money at developers who don't care for their apps and fix long-term bugs.

Reply1 reply
Version 1.1.1

Agreed and look at the version number when you posted this less than 6 months ago. No updates in the mean time and now they jump from version 1.1.1 to 2.0 so they can put it on the app store.

My opinion: This is just another greedy dev looking to cash in on MAS where users can no longer try apps before buying them.

If you need an app like this go with App Tamer imo. Great dev, great app. I do not own it but if I had the need for this type of app again I would buy App Tamer.

Tachy0n Member IconReview+34

I'm sorry to tell you I'm not completely satisfied with Blitz. I own it because I thought about buying Cunning Fox, but lucky I didn't because that's gone.
If you use this with Parallels, you'll be disappointed as it doesn't seem to give any extra CPU to it.
I've also had it crash on me- silently, the menu bar icon just disappears- while an app is focused and then you're *really* in trouble because everything hangs and becomes unresponsive. Even relaunching the app doesn't help. You have to logout and back in to get back to work.
I've lost condfidence in using this product until the next update ships.

Reply0 replies
Version 1.1.1
Jayce Member IconReview+17

I asked the developer whether Blitz worked on Snow Leopard; he said it does, and he was right. Now I can listen to an iTunes playlist while working on photos in Lightroom, and still not have to restart the computer every 45 minutes or so. And I can leave Lightroom open in the background if I need to deal with incoming mail. I think this application is worth buying.

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Version 1.1
LeMerlot Member IconReview+121

Really helpful to block temporarily not needed apps from stealing CPU.

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Version 1.1
dvman Member IconComment+3

Got this via MacHeist for free. That was much too expensive. Locked up every app, took a looooong time to get it to quit. I deleted it with extreme prejudice and hope I never see it again.

Reply0 replies
Version 1.1
Pandamonia Member IconComment+8

I understand how to "freeze applications" but WTF does the "focus" thing do?

Reply1 reply
Version 1.1

It quite simply "freezes" all other apps except the one you're focusing on. You can then "defocus" to unfreeze the other apps. Much quick than selecting each one individually to freeze and unfreeze them.

elegraphy Member IconComment+150

I love Cunning Fox too, that was one of very useful renice utility ever made for OS X with none-intrusive UI design.

And just how many times do we have to learn another dopey name for this plain app? I thought at least "Freeze Frame" (and its camera icon paired with the shutter sound) was meaningful and way more creative to explain the idea of "freeze apps". I dislike the new flower icon, it made no connection to the name Bokeh or Blitz or the process of renice whatsoever, and it looks like the Fire Flower from the Super Mario Bros, too.

Reply2 replies
Version 1.1

Hi Elegraphy,

Sorry about the many name changes. This most recent one was due to the purchase of the name by Alien Skin Software, for their Photoshop plugin. I agree that the flower makes absolutely no sense in the "Blitz" context, but it was a very slight joke in the same vein as "Bokeh". You see, the flower icon is used on many cameras to represent the macro mode, which is a mode that is used to produce bokeh on very up-close photos. While it was admittedly a joke not many people would get, we couldn't think of anything better at the time.

Bokeh *is* still in development, but it's up in the air with several other applications. We hope to have another release coming soon.

Thanks for your comments,
Geoff Pado
Bokeh Developer


Another release coming soon?? One year on there's still no update!!!

gryphonent Member IconComment+444

I feel ripped off too. Registered from FreezeFrame and was told there would be more development happening now. And nothing since the initial release, which was pretty much the feature set of FreezeFrame. I won't support this developer again. Bokeh still hangs a lot, doesn't switch between applications fast in focus mode, and there's still no easy way to get out of freeze mode like it used to be in Cunning Fox where you can simply activate a freezed application. Bokeh only allows for ONE application to be enhanced.

Reply0 replies
Version 1.0.1
There are no Ratings for this App yet.
> 5 6


Current Version (2.x)


Downloads 11,272
Version Downloads 6,267
License Commercial
Date 16 Mar 2011
Platform OS X / Intel 32
Price $8.99