diff --git a/Assets/ShopManager.cs b/Assets/ShopManager.cs
index 98000d44..81dd858e 100644
--- a/Assets/ShopManager.cs
+++ b/Assets/ShopManager.cs
@@ -69,13 +69,23 @@ public class ShopManager : MonoBehaviour, IDetailedStoreListener
     }
     private void Start()
     {
+        EffectDefaulter();
         int coins = PlayerPrefs.GetInt("Coin");
         coinTxt.text = coins.ToString();
         SetupBuilder();
         PipePrefGetter();
         EffectPrefGetter();
     }
-
+    void EffectDefaulter()
+    {
+        if(PlayerPrefs.HasKey("EffectButtonIsEquipped")==false)
+        {
+            PlayerPrefs.SetInt("Coin", PlayerPrefs.GetInt("Coin") + (int)eItem[0].price);
+            Debug.Log("EffectDefaulter");
+            AddEffects(0);
+            EquipUnEquipEffect(0);
+        }
+    }
 
     public bool IsProductPurchased(string productId)
     {
@@ -547,7 +557,7 @@ public class ShopManager : MonoBehaviour, IDetailedStoreListener
     void AddEffects(int index)
     {
         int coins = PlayerPrefs.GetInt("Coin");
-        if (coins > eItem[index].price)
+        if (coins >= eItem[index].price)
         {
             SubtractCoins((int)eItem[index].price);
             PlayerPrefs.SetInt("EffectButtonIsPurchased" + index, 1);