A recent change in the Internet means that older iPads such as the iPad 2 or the original iPad Mini are unable to reach many web sites (even Wikipedia is affected, apparently!).
This problem prevents Universalis and Catholic Calendar from connecting to our servers. The result is that music and audio cannot be downloaded, and that it is not possible to unlock Catholic Calendar using a registration code.
This blog post explains how to get round this problem, both for Universalis and for all other affected web sites.
Update: Old Android devices running Android 5.1.1 and 6.0 (and probably 7.0) have exactly the same problem.
Electric Prayer 