In general, an iOS app can open another iOS app by its URL scheme, if exists, and asks it to perform various actions through its parameters. For example, a
reader app (MapleRead, Marvin, etc.) may thus
open a
dictionary app with the word to be looked up. Or perhaps you want to look up the
map of a place you read in a book. As http is also a scheme implying a web browser app, you may also specify a website URL instead. This is clearly very useful and easy to do, as long as you know the URL schemes with parameters.
While it is
relatively easy to find out the parameters when the URL scheme is
http or
https, it is not easy to find them out otherwise, after I did some search today. There used to be a site, handleopenurl.com, maintaining a list of URL schemes of iOS apps. Unfortunately, the site was long dead. I'm wondering if anyone here is aware of another
active site of this kind.
I'm expecting a list that looks like the following.
App Name -- URL Scheme
Google Maps -- comgooglemaps://?q=hawaii -- see also
ref
Any other data point? Please post yours here.
Let's try to collect the data here. The data collected here should be "forever" around, not like what happened to handleopenurl.com.
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P.S. Someone asked a similar question in another mobileread
thread more than 3 years ago, and there really isn't much up-to-date information there IMHO.