Well got it working like this
var isIOS = ionic.Platform.isIOS();
var isAndroid = ionic.Platform.isAndroid();
if(isIOS) {
$cordovaSocialSharing.canShareVia("instagram").then(function(result) {
$scope.canShareInstagram = true;
}, function() {
$scope.canShareInstagram = false;
});
} else {
if(isAndroid) {
$cordovaAppAvailability.check('com.instagram.android')
.then(function() {
$scope.canShareInstagram = true;
}, function () {
$scope.canShareInstagram = false;
});
}
}