App info is currently processing and/or the app is not yet fully available for sale on the US App Store. Gorgeous picture book of the elements. Recently went universal, and the iPhone-only version now features the notation "do not buy", and this one is temporarily free to make up for that. Edit: 1.70 GB download
As a former chemist before retiring a few years ago, I will most certainly spring for this one. My, that file size is huge, though.
Was about to download this, but the file size is way too much. I'll have to boot up the PC sometime. But this has to be - sale of the week.
If you go through iTunes on a PC or a Mac, it will allow the download. Just not to a non-iOS 7 tablet or phone.
HEADS UP to those not on iOS7... Lock in the license with a pc/mac in iTunes. Then from your iDevice it'll let you download an "old" version. So us non-iOS7 folks can still get this and even use it.