diff --git a/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
index 73d1ae44..b93d8bb2 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calculator/activities/MainActivity.kt
@@ -290,6 +290,7 @@ class MainActivity : SimpleActivity(), Calculator {
     // ****** ADD ONSAVEINSTANCESTATE FUNCTION ******
     override fun onSaveInstanceState(bundle: Bundle) {
         super.onSaveInstanceState(bundle)
+        /*
         bundle.putString("res", calc.mResult)
         bundle.putString("savedPreviousCalculation", calc.previousCalculation)
         bundle.putString("savedLastKey", calc.lastKey)
@@ -297,6 +298,9 @@ class MainActivity : SimpleActivity(), Calculator {
         bundle.putDouble("savedBaseValue", calc.baseValue)
         bundle.putDouble("savedSecondValue", calc.getSecondValueV2())
         bundle.putString("savedInputDisplayedFormula", calc.inputDisplayedFormula)
+        */
+        //JSON
+        bundle.putString("myJsonObject", calc.getjson())
     }
     //============================================================
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/calculator/helpers/CalculatorImpl.kt b/app/src/main/kotlin/com/simplemobiletools/calculator/helpers/CalculatorImpl.kt
index acf11d4e..8623fd81 100644
--- a/app/src/main/kotlin/com/simplemobiletools/calculator/helpers/CalculatorImpl.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/calculator/helpers/CalculatorImpl.kt
@@ -484,4 +484,20 @@ class CalculatorImpl(
         return this.secondValue
     }
 
+    //JSON
+    public fun getJson() : String
+    {
+    val jsonObject = buildJsonObject{
+        put("res", mResult)
+        put("savedPreviousCalculation", previousCalculation)
+        put("savedLastKey", lastKey)
+        put("savedLastOperation", lastOperation)
+        put("savedBaseValue", baseValue)
+        put("savedSecondValue", secondValue)
+        put("savedInputDisplayedFormula", inputDisplayedFormula)
+        return jsonObject.toString()
+
+    }
+    }
+
 }