Menu button being replaced by back button

If I click on a menu item in I’m redirected to that page and my menu button is replaced with a back button.

I want the menu button to be persistent always, how do I do this?

On menu item click:

$state.go('app.schedule')

layout:

  .state('app', {
    url: '/app',
    abstract: true,
    templateUrl: 'templates/menu.html',
    controller: 'MenuCtrl'
  })
  .state('app.welcome', {
    url: '/welcome',
    views: {
      'menuContent': {
        templateUrl: 'templates/welcome.html',
        controller: 'WelcomeCtrl'
      }
    }
  })
  .state('app.schedule', {
    url: '/schedule',
    views: {
      'menuContent': {
        templateUrl: 'templates/schedule.html',
        controller: 'ScheduleCtrl'
      }
    }
  })