diff --git a/app/Services/ProductDisplayPriceService.php b/app/Services/ProductDisplayPriceService.php
index 35443a6..59cab0b 100644
--- a/app/Services/ProductDisplayPriceService.php
+++ b/app/Services/ProductDisplayPriceService.php
@@ -30,7 +30,22 @@ class ProductDisplayPriceService
             return false;
         }
 
-        return $this->isMeltedTradeProduct($product);
+        return $this->isMeltedTradeProduct($product)
+            || $this->usesQuantityAppPrice($product);
+    }
+
+    /** معامله مقداری با قیمت اپ — نه قیمت دستی قدیمی با price پر در DB */
+    private function usesQuantityAppPrice(Product $product): bool
+    {
+        if (! ($product->trade_by_quantity ?? false)) {
+            return false;
+        }
+
+        if ($product->reading_method || (int) ($product->direct_price ?? 0) === 1) {
+            return false;
+        }
+
+        return (int) ($product->price ?? 0) <= 0;
     }
 
     /**