diff --git a/src/main/kotlin/com/dietmap/yaak/api/appstore/receipt/ReceiptResponse.kt b/src/main/kotlin/com/dietmap/yaak/api/appstore/receipt/ReceiptResponse.kt
index 4acd936..622ce8e 100644
--- a/src/main/kotlin/com/dietmap/yaak/api/appstore/receipt/ReceiptResponse.kt
+++ b/src/main/kotlin/com/dietmap/yaak/api/appstore/receipt/ReceiptResponse.kt
@@ -87,7 +87,7 @@ data class LatestReceiptInfo (
         @get:JsonProperty("expires_date") val expiresDate: String,
         @get:JsonProperty("expires_date_ms") val expiresDateMs: Long,
         @get:JsonProperty("expires_date_pst") val expiresDatePst: String?,
-        @get:JsonProperty("is_in_intro_offer_period") val isInIntroOfferPeriod: String,
+        @get:JsonProperty("is_in_intro_offer_period") val isInIntroOfferPeriod: Boolean,
         @get:JsonProperty("is_trial_period") val isTrialPeriod: Boolean,
         @get:JsonProperty("is_upgraded") val isUpgraded: Boolean?,
         @get:JsonProperty("original_purchase_date") val originalPurchaseDate: String,
diff --git a/src/main/kotlin/com/dietmap/yaak/api/appstore/subscription/SubscriptionRequest.kt b/src/main/kotlin/com/dietmap/yaak/api/appstore/subscription/SubscriptionRequest.kt
index a377b91..8fbfb8f 100644
--- a/src/main/kotlin/com/dietmap/yaak/api/appstore/subscription/SubscriptionRequest.kt
+++ b/src/main/kotlin/com/dietmap/yaak/api/appstore/subscription/SubscriptionRequest.kt
@@ -10,7 +10,8 @@ data class SubscriptionPurchaseRequest(
         @get:JsonProperty("price") @param:NotBlank val price: BigDecimal,
         @get:JsonProperty("currencyCode") @param:NotBlank val currencyCode: String,
         @get:JsonProperty("countryCode") @param:NotBlank val countryCode: String,
-        @get:JsonProperty("discountCode") val discountCode: String?
+        @get:JsonProperty("discountCode") val discountCode: String?,
+        @get:JsonProperty("effectivePrice") val effectivePrice: BigDecimal?
 ): Serializable {
 
     override fun toString(): String {
@@ -18,7 +19,6 @@ data class SubscriptionPurchaseRequest(
     }
 }
 
-
 data class SubscriptionRenewRequest(
         @get:JsonProperty("receipt") @param:NotBlank val receipt: String,
         @get:JsonProperty("discountCode") val discountCode: String?
diff --git a/src/main/kotlin/com/dietmap/yaak/domain/appstore/AppStoreSubscriptionService.kt b/src/main/kotlin/com/dietmap/yaak/domain/appstore/AppStoreSubscriptionService.kt
index afd0d11..52ca60f 100644
--- a/src/main/kotlin/com/dietmap/yaak/domain/appstore/AppStoreSubscriptionService.kt
+++ b/src/main/kotlin/com/dietmap/yaak/domain/appstore/AppStoreSubscriptionService.kt
@@ -26,12 +26,19 @@ class AppStoreSubscriptionService(val userAppClient: UserAppClient, val appStore
 
             val latestReceiptInfo = receiptResponse.latestReceiptInfo!!.stream().findFirst().get()
 
+            var effectivePrice = subscriptionPurchaseRequest.price
+
+            // intro offer period purchase
+            if (latestReceiptInfo.isInIntroOfferPeriod && subscriptionPurchaseRequest.effectivePrice != null) {
+                effectivePrice = subscriptionPurchaseRequest.effectivePrice
+            }
+
             val notification = UserAppSubscriptionNotification(
                     notificationType = NotificationType.SUBSCRIPTION_PURCHASED,
                     description = "Subscription purchase from AppStore",
                     productId = latestReceiptInfo.productId,
                     countryCode = subscriptionPurchaseRequest.countryCode,
-                    price = subscriptionPurchaseRequest.price,
+                    price = effectivePrice,
                     currencyCode = subscriptionPurchaseRequest.currencyCode,
                     transactionId = latestReceiptInfo.transactionId,
                     originalTransactionId = latestReceiptInfo.originalTransactionId,
diff --git a/src/main/kotlin/com/dietmap/yaak/domain/googleplay/GooglePlaySubscriptionService.kt b/src/main/kotlin/com/dietmap/yaak/domain/googleplay/GooglePlaySubscriptionService.kt
index 84e2cb6..0d98a3c 100644
--- a/src/main/kotlin/com/dietmap/yaak/domain/googleplay/GooglePlaySubscriptionService.kt
+++ b/src/main/kotlin/com/dietmap/yaak/domain/googleplay/GooglePlaySubscriptionService.kt
@@ -27,11 +27,26 @@ class GooglePlaySubscriptionService(val androidPublisherApiClient: AndroidPublis
     fun handlePurchase(purchaseRequest: PurchaseRequest, initialPurchase: Boolean = true): SubscriptionPurchase? {
         val subscription = androidPublisherApiClient.Purchases().Subscriptions().get(purchaseRequest.packageName, purchaseRequest.subscriptionId, purchaseRequest.purchaseToken).execute()
         checkArgument(subscription.paymentState in listOf(PAYMENT_RECEIVED_CODE, PAYMENT_FREE_TRIAL_CODE)) { "Subscription has not been paid yet, paymentState=${subscription.paymentState}" }
+
+        var effectivePrice = BigDecimal(subscription.priceAmountMicros).divide(BigDecimal(1000 * 1000))
+
+        // test purchase
+        if (subscription.purchaseType == 0) {
+            effectivePrice = BigDecimal(0.0)
+        }
+
+        // introductory price purchase
+        if (!subscription.orderId.contains("..")) {
+            if (subscription.introductoryPriceInfo?.introductoryPriceAmountMicros != null) {
+                effectivePrice =  BigDecimal(subscription.introductoryPriceInfo.introductoryPriceAmountMicros).divide(BigDecimal(1000 * 1000))
+            }
+        }
+
         val notificationResponse = userAppClient.sendSubscriptionNotification(UserAppSubscriptionNotification(
                 notificationType = if (initialPurchase) NotificationType.SUBSCRIPTION_PURCHASED else NotificationType.SUBSCRIPTION_RENEWED,
                 appMarketplace = AppMarketplace.GOOGLE_PLAY,
                 countryCode = subscription.countryCode,
-                price = BigDecimal(subscription.priceAmountMicros).divide(BigDecimal(1000 * 1000)),
+                price = effectivePrice,
                 currencyCode = subscription.priceCurrencyCode,
                 transactionId = subscription.orderId,
                 originalTransactionId = toInitialOrderId(subscription.orderId),