I find it interesting that no one has questioned why Apple would make this available in the App Store. If it is as totally useless as most seem to believe, that leads me to wonder why Apple continues to allow it to be sold. Could they need the .99¢ that badly? Or do they really not care?

Completely failed memory management in Mac OSuX

"...OS X has a feature called inactive memory. This is memory that was recently used by an app you closed and can be quickly made to active memory if you resume to use that app. A nice concept, that fails miserably. OS X's documentation says, that this memory may be freed at any moment. However in practice, it just keeps on accumulating until you run out of free memory. In this case a sane option for the OS would be freeing the inactive memory. Instead the OS X decides to swap the inactive memory on the disk. So when running out of free memory and having a 1.5 gigabytes of inactive memory left, your OS starts paging the unused inactive memory to disk instead of freeing it for applications to use. Not only this causes your computer to slow down, it also is counter-intuitive in the terms of the original idea of inactive memory: when it's on disk, it definitely is not made active quickly.

"I managed to find out that this memory can be freed with combination of XCode's purge-command and repairing disk permissions. First usually freed around 200MB of memory while latter freed almost every bit of inactive memory. Eventually this became a daily routine. When arriving to work the first thing was to hit repair disk permissions button and do something else than actually use the computer for the next five to ten minutes. Sigh...."

http://dywypi.org/2012/02/back-on-linux.html

I have found Free Memory Pro to be extremely valuable in my being able to monitor how much memory is available when I'm running more than one CPU-intensive application such as Adobe Photoshop, Adobe Director, and Final Cut Pro in addition to other work-related applications where I need to avoid any avoidable slowdowns - especially if I'm running Safari, Mail, TextSoap, and iTunes at the same time. Being able to now hide the dock icon is a plus, as is the detachable memory usage graph. I also find that updates through the App Store are a real time-saver.

I consider Free Memory Pro a very useful tool in my job as a Multimedia Producer at a large communications company.

If you're looking for some kind of hoax to make a quick buck apps like this show you how it's done.

This is offered (to the developer) in the spirit of respect for your talents…

However:

while this looks to be a worthwhile app, as always, we'd love it if developers who use the App Store would take a cue from other programmers, like Russell over at SweetP Productions (Cookie), and provide a demo which can be downloaded at the developers site, for trial, prior to purchase.

Mac developers have been doing this with their wares for some fifteen plus years, with great success I might add.

I know you guys are feeling the pinch in sales, because I have many developers confide this to me.

Take the hint: please provide a test drive, before asking us to buy the car.

It's not the $1 here or the $4.99 there:

It's all of them added up over time that keeps many of us from availing ourselves of your programs, especially when we can't try them out first.