Personal relaxation app Thunderspace is getting even better with the move to version 3.0.

The app, which uses stereoscopic 3-D audio to reproduce what you’d hear during an actual thunderstorm, is now universal and designed for the iPhone/iPod touch and iPad/iPad mini.

Download Thunderspace now in the App Store for $1.99. There are a number of in-app purchase opportunities to buy other thunderstorm types.

With the new version, non-purchased storms appear in grayscale so it’s easier to see what you’ve already bought. The best value is the $4.99 Rumble Bundle which includes all current and future storms.

Originally arriving in the App Store last summer, our own Christine Chan had some high praise for the app in her original review:

I have been enjoying Thunderspace quite a bit, as it’s a very sleek app that brings quite an amazing experience. If you are a fan of thunderstorms, and want to have the convenience of them whenever, without the actual bad weather, then I highly recommend checking out Thunderspace.

It also took home our prestigious AppAdvice App of the Week award soon after its release.

I’ve really enjoyed using Thunderspace to relax and at night before bed, and I’m thrilled to see it become a universal app. Along with using a pair of headphones for the best sound effects, the LED flash of an iPhone even replicates lighting.