app store - invite/install iOS app with custom action -

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i building group im app (like groupme), , want allow users invite new users app adding them group, when new user installs , opens app, automatically added group.

i have of implemented, cannot figure out how pass data installation can add new user group.

is possible trigger custom action upon installation?

right i'm texting invite urls forward user app store:

http://appstore.com/appname/appname

if add parameters end of it, how retrieve them in app code?

i have been researching maybe i'm looking wrong thing. found "deep linking" frameworks http://applinks.org/ doesn't seem custom invites.


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