Works great when it works
I installed this on both my iMac with 16GB of RAM and my MacBook Pro with 8MB. On the iMac it works better than any app I’ve used as it doesn’t cause the computer to freeze when it’s purging, like other memory apps I’ve tried.
On my MacBook it frequently crashes, I presume because with 8MB vs 16MB it is working a lot harder. I wouldn’t recommend it for a 4MB machine.
elteam about Memory Purge - Monitor and Free Up Memory, v1.3