This app provides an excellent benchmark. I would like to be able to save results and the date. Please provide an update with the option to remove ads.

Linpack is a benchmark program with a long history; this little app moves it to the iPhone. I am not aware of any app that actually uses this type of math on a smartphone; most smartphone applications, even if they analyze huge sets of data, don't attempt the advanced statistical insights it could give. (That is, IF it worked against real data and reported any result other than how accurately it solved the linpack problem. This is JUST for benchmarking!) I've used the math on desktop machines for an aggressive stat approach to investing, and the math has useful applications in almost all science, but a phone, especially due to its casual use patterns, is an unlikely home for these types of in-depth studies.In that sense, Linpack is useful for getting a rough notion of the iPhone's power on math-intensive work and almost nothing else. I found it useful to compare to the old PCs that I used for my work (almost a hundred times faster!) or against other smartphones (similar to other what I see quoted for other ARM chips at similar clock speeds).Maybe the developer will suggest other uses, or show how clever programming could speed up the direct way of solving the problem, but I've been happy with just this.

They can say all they want, but when other phone user's have inefficent OS and hardware setup. It shows. And this is the app that will show them. the 4S and iPad 2 that I have just burn through every phone on the market. Including 1.5GHz ones. This is comparable as they all are currently using more or less the same CPU in each phone. Either an ARM Cortex A9 or a slightly modified one; thus when my 800MHz 4S crushes that 1.5GHz ...phone....yeah. This doesn't stand for everything, but it does mean something.

I learned about this app by watching a clip about the Droid 2. The commentator showed that Linpack was installed so the viewer could check out the mflops that the Droid 2 is putting out. Turns out that the iPhone 4 totally smokes the Droid 2 by over twice as much mflops. So, to show your iPhone's performance superiority I'd say that this app does the job rather well.