Redirect to application if installed, otherwise to App Store

Question

I know it\'s possible to link directly to an app in iOS by registering a custom scheme (e.g. so://) and it\'s also possible to link to the app in the appstore via itunes.

Answer 1

Yeah its pretty easy. This requires the app you want to open to have a url scheme declared in the plist:

//if you can open your app
if([[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString:@"yourapp://"]])
{
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"yourapp://"]];
}
else
{
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"ituneappstorelink"]];
}