From Introversion, there doesn't seem to be any other information, neither here in there forum (where previous releases have been announced), nor on their main website, nor there was an email. lists 64-bit iPads as the only requirement). only shows the description from the Play Store (and the link to it actually takes me to iTunes on my PC and iTunes, btw. not give any information at all about the Android version, only linking the Play Store. According to the Play Store, 'Prison Architect: Mobile' requires Android 4.4, with no additional requirements given (though it is called the 'tablet version' in the description). :(ĮDIT: I still would be interested in the requirements and restriction. On my Galaxy Note 10.1 running Android 5.1.1, the app is listed as not compatible. I could not find a list of requirements anywhere, but apparently all rooted devices are excluded as well as most older devices and possibly any tablets with screen sizes under 10 inch. And even for tablets, there seem to be many restrictions.
The app is released worldwide now, but as it is for tablets only, it will still not work on Android phones (or iPhones).