Swipe detection script help?

Hey guys I need help. I created this code to help detect swipe direction input, then spawn arrows if they swiped in the direction of the previous arrow.

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 
 public class AllTogether : MonoBehaviour {
     private float fingerStartTime = 0.0f;
     private Vector2 fingerStartPos = Vector2.zero;
 
     private bool isSwipe = false;
     private float minSwipeDist = 5.0f;
     private float maxSwipeTime = 0.0f;
 
     public List<GameObject> prefabList = new List<GameObject>();
     public GameObject ArrowUp;
     public GameObject ArrowDown;
     public GameObject ArrowLeft;
     public GameObject ArrowRight;
 
 
     // Use this for initialization
     void Start () {
         Spawner ();
     
     }
     
 
     // Update is called once per frame
     void Update () {
 
 
 
         if (Input.touchCount > 0) {
 
                 foreach (Touch touch in Input.touches) {
                     switch (touch.phase) {
                 case TouchPhase.Began:
                     isSwipe = true;
                     fingerStartTime = Time.time;
                     fingerStartPos = touch.position;
                     break;
 
                 case TouchPhase.Canceled:
                     isSwipe = false;
                     break;
 
                 case TouchPhase.Ended:
 
                     float gestureTime = Time.time - fingerStartTime;
                     float gestureDist = (touch.position - fingerStartPos).magnitude;
 
                     if (isSwipe && gestureTime < maxSwipeTime && gestureDist > minSwipeDist) {
                         Vector2 direction = touch.position - fingerStartPos;
                         Vector2 swipeType = Vector2.zero;
 
 
                     if (GameObject.Find ("Right") != null) {
                     if (swipeType.x != 0.0f) {
                             if (swipeType.x > 0.0f) {
                                     Destroy (GameObject.FindWithTag ("Arrow"));
                                     Spawner ();
                                 }else {
                                     GUI.Label (new Rect (0, 0, Screen.width, Screen.height), "You Lost");
                                 }
 
 
                             }
 
                     if (GameObject.Find ("Left")!= null){
                     if (swipeType.x != 0.0f) {
                         if (swipeType.x > 0.0f) {
                             
                             GUI.Label (new Rect (0, 0, Screen.width, Screen.height), "You Lost");
                                     }else {
                                         Destroy (GameObject.FindWithTag ("Arrow"));
                                         Spawner ();
 
 
                                     }
                                 }
                                 if (GameObject.Find ("Up") != null){
                                 if (swipeType.y != 0.0f) {
                                     if (swipeType.y > 0.0f) {
                                             Destroy (GameObject.FindWithTag ("Arrow"));
                                             Spawner ();
 
                                     }else {
                                             GUI.Label (new Rect (0, 0, Screen.width, Screen.height), "You Lost");
 
                                         }
                                     }
                                     if (GameObject.Find ("Down") != null) {
                                     if (swipeType.y != 0.0f) {
                                         if (swipeType.y > 0.0f) {
                                                 GUI.Label (new Rect (0, 0, Screen.width, Screen.height), "You Lost");
 
                                             }else{
                                                 Destroy (GameObject.FindWithTag ("Arrow"));
                                                 Spawner ();
 
                                             }
                                         }
                                     }
                                 }
                             }
                         }
                     }
                     break;
     
 }
             }
         }
     }
 
 
 void Spawner(){
     prefabList.Add(ArrowUp);
     prefabList.Add(ArrowDown);
     prefabList.Add(ArrowLeft);
     prefabList.Add(ArrowRight);
 
     int prefabIndex = UnityEngine.Random.Range(0,4);
     Instantiate(prefabList[prefabIndex], new Vector3(0, 1, 10),Quaternion.Euler (0,0,0));// This one spawns it
 }
 }

But for some reason it doesn't work. It has no arrows, but it doesn't seem to take ANY input in when the game is built. I even added a Touch Input Module and a Standalone Input Module. Nothing seems to be working... Any help would be truly appreciated.