Using the code
FB.ui({
method: 'apprequests',
filters: 'app_non_users',
message: $filter('i18n')('voices-invite-facebookMessage'),
to: users // an array of uIDs
}, function(data){
console.log(JSON.stringify(data));
});
I get the following dialog:
From the documentation I fought I was able to invite friends to use my app, did I understand it wrong?
Thanks