diff --git a/api/src/main/kotlin/com/lhwdev/selfTestMacro/api/registerServey.kt b/api/src/main/kotlin/com/lhwdev/selfTestMacro/api/registerServey.kt
index 613af886..ce049e0f 100644
--- a/api/src/main/kotlin/com/lhwdev/selfTestMacro/api/registerServey.kt
+++ b/api/src/main/kotlin/com/lhwdev/selfTestMacro/api/registerServey.kt
@@ -52,7 +52,8 @@ data class SurveyData(
 	val rspns14: String? = null,
 	val rspns15: String? = null,
 	@SerialName("upperToken") val userToken: UserToken,
-	@SerialName("upperUserNameEncpt") val upperUserName: String
+	@SerialName("upperUserNameEncpt") val upperUserName: String,
+	val clientVersion: String
 )
 
 @Serializable
diff --git a/app/src/main/java/com/lhwdev/selfTestMacro/selfTestUtils.kt b/app/src/main/java/com/lhwdev/selfTestMacro/selfTestUtils.kt
index b4613723..7fa2d5fd 100644
--- a/app/src/main/java/com/lhwdev/selfTestMacro/selfTestUtils.kt
+++ b/app/src/main/java/com/lhwdev/selfTestMacro/selfTestUtils.kt
@@ -40,7 +40,7 @@ suspend fun Context.singleOfUserGroup(list: List<User>) = if(list.size == 1) lis
 	null
 }
 
-fun Context.surveyData(user: User, usersIdentifier: UserIdentifier): SurveyData {
+suspend fun Context.surveyData(user: User, usersIdentifier: UserIdentifier): SurveyData {
 	val pref = preferenceState
 	
 	val quickTestNegative = pref.quickTest?.let {
@@ -53,6 +53,7 @@ fun Context.surveyData(user: User, usersIdentifier: UserIdentifier): SurveyData
 	} ?: false
 	val isIsolated = pref.isIsolated
 	
+	val clientVersion = pref.appMeta().hcsVersion
 	
 	return SurveyData(
 		userToken = user.token,
@@ -60,7 +61,9 @@ fun Context.surveyData(user: User, usersIdentifier: UserIdentifier): SurveyData
 		rspns03 = if(quickTestNegative) null else "1",
 		rspns07 = if(quickTestNegative) "0" else null,
 		// rspns09 = if(isIsolated) "1" else "0",
-		rspns00 = !(isIsolated) // true = okay, false = problem
+		// rspns00 = !(isIsolated) // true = okay, false = problem
+		rspns00 = true,
+		clientVersion = clientVersion
 	)
 }
 
@@ -126,7 +129,7 @@ fun Context.updateTime(intent: PendingIntent) {
 
 private val random = Random
 
-private fun millisToDaysCumulative(millis: Long) =
+fun millisToDaysCumulative(millis: Long) =
 	// ms     sec   min hour day
 	millis / 1000 / 60 / 60 / 24
 
@@ -161,6 +164,10 @@ fun Context.scheduleNextAlarm(
 			return
 		}
 		
+		if(nextDay && lastDay == millisToDaysCumulative(new.timeInMillis)) {
+			new.add(Calendar.DAY_OF_YEAR, 1)
+		}
+		
 		var iteration = 0
 		while(iteration < 10) {
 			val days = millisToDaysCumulative(new.timeInMillis)
@@ -168,7 +175,6 @@ fun Context.scheduleNextAlarm(
 			
 			when {
 				!pref.includeWeekend && (day == Calendar.SATURDAY || day == Calendar.SUNDAY) -> Unit
-				nextDay || lastDay == days || targetMin < currentMin - 5 -> Unit
 				quick != null && quick.behavior == QuickTestInfo.Behavior.doNotSubmit && day in quick.days -> Unit
 				else -> break
 			}
diff --git a/app/src/main/java/com/lhwdev/selfTestMacro/utils.kt b/app/src/main/java/com/lhwdev/selfTestMacro/utils.kt
index 95b53273..1138644d 100644
--- a/app/src/main/java/com/lhwdev/selfTestMacro/utils.kt
+++ b/app/src/main/java/com/lhwdev/selfTestMacro/utils.kt
@@ -20,6 +20,7 @@ import androidx.core.view.doOnPreDraw
 import androidx.core.view.setPadding
 import com.google.android.material.snackbar.Snackbar
 import com.lhwdev.fetch.http.Session
+import com.lhwdev.fetch.http.fetch
 import com.lhwdev.selfTestMacro.api.*
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -28,6 +29,7 @@ import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.Serializable
 import kotlinx.serialization.json.Json
+import java.net.URL
 import java.util.WeakHashMap
 import kotlin.coroutines.resume
 import kotlin.properties.ReadWriteProperty
@@ -153,6 +155,8 @@ class PreferenceState(val pref: SharedPreferences) {
 			putLong("lastSubmit", value)
 		}
 	
+	var appMeta: AppMeta? by pref.preferenceSerialized("appMeta", AppMeta.serializer())
+	
 	var lastQuestion: String? by pref.preferenceString("lastQuestion")
 	
 	var shownNotices: Set<String>
@@ -167,6 +171,25 @@ class PreferenceState(val pref: SharedPreferences) {
 		}
 }
 
+suspend fun PreferenceState.appMeta(): AppMeta.Data {
+	val day = millisToDaysCumulative(System.currentTimeMillis())
+	val last = appMeta
+	if(last != null && last.at == day) return last.data
+	
+	val data = fetch(URL("https://raw.githubusercontent.com/wiki/lhwdev/covid-selftest-macro/app_meta.json"))
+		.toJsonLoose(AppMeta.Data.serializer())
+	appMeta = AppMeta(data, at = day)
+	return data
+}
+
+@Serializable
+class AppMeta(val data: Data, val at: Long) {
+	@Serializable
+	class Data(
+		val hcsVersion: String
+	)
+}
+
 @Serializable
 data class QuickTestInfo(
 	val days: Set<Int>,