You really need a list of Apple products to compare your own Mac with that of others.

This is a small application that installs quickly and seems to be depressingly accurate. If you are concerned about the speed of your hard drives—internal or external—you are probably aware that something is going wrong. This app will not tell you what is going wrong with your drive, but it will quickly let you know that in fact your drive is at death’s door: then, ideally, you can get all your data backed up in time.The price seems reasonable considering how desperate you must be for bad news.It can’t be used to evaluate a drive to which it cannot read and write, so it will tell you for instance that it cannot address your TIME MACHINE ONLY backup hard drive. “Controls” are extremely simple and spare: information is provided with little i-buttons if you want to get more background on a particular statistic.

One thing that was always missing since I moved from windows 5 years back was a speed test app for my external harddrives. Although there were other apps I tried, most would just be a jazzy interface that gave highly inaccurate results. This is the first app that accurately test the harddrives and show them in a simple no-frills manner.

I have a few SSDs that use SLC caches and no other tool has been able to test the disk speeds accurately since they usually read and write only from the cache. This is the only program that I have seen exhaust the SLC caches and provide the resulting “real” disk speed. Well worth the asking price.