diff --git a/app/src/main/kotlin/jackall/moncalc/Const.kt b/app/src/main/kotlin/jackall/moncalc/Const.kt
index 94bc809..eb58c14 100644
--- a/app/src/main/kotlin/jackall/moncalc/Const.kt
+++ b/app/src/main/kotlin/jackall/moncalc/Const.kt
@@ -10,11 +10,13 @@
         const val questDataVersion = 0
         const val moveButtonActiveAlpha = 1.0f
         const val moveButtonInactiveAlpha = 0.7f
-        const val develop = false
+        const val develop = true
 
         const val interStitialUnitId = "ca-app-pub-6316747512041615/4023527884"
         const val overlayBannerUnitId = "ca-app-pub-6316747512041615/2748607687"
         const val BannerUnitId = "ca-app-pub-6316747512041615/4707243530"
         const val historyRectangleBannerUnitId = "ca-app-pub-6316747512041615/5769770113"
+
+        const val interstitialFrequency = 3
     }
 }
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