Stellarium PLUS seems to be the only version available now on the Apple APP Store.

Only the commercial Stellarium PLUS version is available, at the cost of $13.99. Unfortunately, if you have an iPhone or an iPad, it seems that the free version of Stellarium is not in the APP Store anymore. Is Stellarium Available For iPhone And iPad? If you have an Android device, you can choose between Stellarium Mobile (free) and a more advanced version, called Stellarium Mobile PLUS, which is the commercial version and costs about $14. The interface of Stellarium’s web application. You can even use a stripped-down web-based version if you cannot/want to install it. Download links for the different computer platforms. Luckily Stellarium is not only available for computers running on Windows (both 32-bit and 64-bit), but it is also available for Linux and Mac OS X (64-bit only). For the mobile app, though, the answer is: depends. Stellarium for your desktop/laptop is free. If you don’t have Stellarium already installed on your computer, you can download it from the official Stellarium website.

Stellarium web online star map