iOS not routing

ionic-v1
1

I have an app that works perfect in Android, but on iOS the app is not routing or calling the correct controllers and templates.
app.js
var app = angular.module(‘starter’, [‘ionic’,‘ngCordova’]);

  app.run(function($ionicPlatform) {
  $ionicPlatform.ready(function() {
    if(window.cordova && window.cordova.plugins.Keyboard) {
      cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
      cordova.plugins.Keyboard.disableScroll(true);
    }
    if(window.StatusBar) {
      StatusBar.styleDefault();
    }
  });

});

app.config(function($stateProvider, $urlRouterProvider, $ionicConfigProvider) {
    $ionicConfigProvider.backButton.text('').icon('ion-chevron-left').previousTitleText(false);
    $ionicConfigProvider.views.transition('none');
    $ionicConfigProvider.navBar.alignTitle('center');
    $ionicConfigProvider.tabs.position("bottom");
    
    $stateProvider.state('about',{
      url: '/about',
      views: {
        about: {
          templateUrl: 'templates/about.html',
          controller: 'AboutCtrl',
        }
      }
    });

    $stateProvider.state('signin',{
      url: '/',
      views: {
        signin: {
          templateUrl: 'templates/signin.html',
          controller: 'LoginCtrl',
        }
      }
    });
    $urlRouterProvider.otherwise('/');
  });

index.html






Test

    <link href="lib/ionic/css/ionic.css" rel="stylesheet">
    <link href="css/style.css" rel="stylesheet">

    <!-- IF using Sass (run gulp sass first), then uncomment below and remove the CSS includes above
    <link href="css/ionic.app.css" rel="stylesheet">
    -->

    <!-- ionic/angularjs js -->
    <script src="lib/ionic/js/ionic.bundle.js"></script>

    <!-- ngCordova -->
    <script src="lib/ngcordova/ng-cordova.min.js"></script>
    
    <!-- cordova script (this will be a 404 during development) -->
    <script src="cordova.js"></script>
    
  </head>
  <body>
    <ion-nav-bar class="bar-positive">
      <ion-nav-back-button>
      </ion-nav-back-button>
    </ion-nav-bar>
    <ion-tabs class="tabs-positive">
        <ion-tab icon-on="ion-ios-home" icon-off="ion-ios-home-outline" ui-sref="signin">
            <ion-nav-view name="signin"></ion-nav-view>
        </ion-tab>
        <ion-tab icon-on="ion-ios-help" icon-off="ion-ios-help-outline" ui-sref="about">
            <ion-nav-view name="about"></ion-nav-view>
        </ion-tab>
    </ion-tabs>

    
    <!-- your app's js -->
    <script src="js/app.js"></script>
    <script type="text/javascript" src="js/controllers/signin.js"></script>
    <script type="text/javascript" src="js/controllers/about.js"></script>
  </body>
</html>

ionic version: 1.7.14
cordova version: 6.0.0
iOS: 9.2

Does anyone see or know why the routing may not be working or if there is a workaround?