itunes symbolic link to localized application - ios

Question

I use i-tunes in-app links like:
NSString *app_link = #"samuraivszombiesdefense";
NSString *link = [#"itms-apps://itunes.com/apps/"stringByAppendingString:app_name];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:link]];
Do somebody happen to know: what is this 'app name' - name of application record (except forbidden symbols) created in itunes (what you can see on iTunesConnect->'Manage Your Apps' screen) or 'App Name' field from 'Metadata and uploads' when editing version details in iTunesConnect?
I mean if app's metadata has many languages, 'App Name' for every language is different. Will link like 'itms-apps://itunes.com/apps/appname' work if appname will be english app name?

Answer 1

Ok, here's my solution.
I decided to use URLs like:
http://itunes.apple.com/app/idXXXXXXXXX?mt=8, where XXXXXXXXX - my app's id.
There is no country prefix, so I suppose it will work global, not only in USA or Germany.
Or not?
This kind of links can cause multiple redirects. So to avoid them I've used such code (based on code from Apple docs and works pretty well):
#interface iTunesOpener ()
{
NSURL *iTunesURL;
}
- (void)openAppLinkFromAppId:(NSString *) appid;
- (void)openReferralURL:(NSURL *)referralURL;
- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response;
- (void)connectionDidFinishLoading:(NSURLConnection *)connection;
#end
#implementation iTunesOpener
- (void)openAppLinkFromAppId:(NSString *) appid
{
NSString *iTunesLink = [NSString stringWithFormat:#"http://itunes.apple.com/app/id%#?mt=8", appid];
NSURL* url = [NSURL URLWithString:iTunesLink];
[self openReferralURL: url];
}
// Process a LinkShare/TradeDoubler/DGM URL to something iPhone can handle
- (void)openReferralURL:(NSURL *)referralURL
{
NSURLConnection *con = [[NSURLConnection alloc] initWithRequest:[NSURLRequest requestWithURL:referralURL] delegate:self startImmediately:YES];
[con release];
}
// Save the most recent URL in case multiple redirects occur
// "iTunesURL" is an NSURL property in your class declaration
- (NSURLRequest *)connection:(NSURLConnection *)connection willSendRequest:(NSURLRequest *)request redirectResponse:(NSURLResponse *)response
{
iTunesURL = [response URL];
if( [iTunesURL.host hasSuffix:#"itunes.apple.com"])
{
[connection cancel];
[self connectionDidFinishLoading:connection];
return nil;
}
else
{
return request;
}
}
// No more redirects; use the last URL saved
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[[UIApplication sharedApplication] openURL:iTunesURL];
}
#end

Answer 2

Edit: App's link will not work if you just use the same link for all countries. Because the link in different country is different. For example Facebook's link in China has a '/cn' between '/com' and '/app'. See the picture:
To be extreamly concise:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"itms://itunes.com/apps/appname"]];
If you want to send to all the apps for a developer, use
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"itms://itunes.com/apps/developername"]];
If you want to open a specific app with your company name included in the URL:
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:#"itms://itunes.com/apps/developername/appname"]];
And you can refer to this question for more:How to link to apps on the app store

Answer 3

The best solution we've found is to avoid trying to predict the URL, and create a custom URL redirect like http://mycompany.com/redirects/my-app-itunes which you can update to redirect to the correct URL once you know it.
The exact string you must use is difficult to get right, especially when you have special characters, spaces etc. The rules might even change, or Apple could decide to change something. It's best to keep the URL under your control.
If you really want to go this route, see this documentation from Apple. It details exactly what you need to do to transform the app name into a short friendly iTunes URL:
Remove all whitespace
Convert all characters to lower-case
Remove all copyright (©), trademark (™) and registered mark (®) symbols
Replace ampersands ("&") with "and"
Remove most punctuation (See Listing 2 for the set)
Replace accented and other "decorated" characters (ü, å, etc.) with their elemental character (u, a, etc.)
Leave all other characters as-is.
The application name should be the name as it appears in iTunes Connect's application list (non-localized). The best thing is to test this however.
Finally, from Apple:
These itunes.com URLs are provided as a convenience and are not
guaranteed to link to a particular application or company. Be sure to
test your URLs before using them in any marketing or other public
materials. If there are naming conflicts, continue using the standard
itunes.apple.com URLs, which contain a unique numerical identifier
within the URL.