diff --git a/library/src/main/java/hotchemi/android/rate/AppRate.java b/library/src/main/java/hotchemi/android/rate/AppRate.java
index b9a4907..2c6c6a5 100644
--- a/library/src/main/java/hotchemi/android/rate/AppRate.java
+++ b/library/src/main/java/hotchemi/android/rate/AppRate.java
@@ -5,6 +5,8 @@
 import android.view.View;
 
 import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
 
 import static hotchemi.android.rate.DialogManager.create;
 import static hotchemi.android.rate.PreferenceHelper.getInstallDate;
@@ -13,6 +15,8 @@
 import static hotchemi.android.rate.PreferenceHelper.getRemindInterval;
 import static hotchemi.android.rate.PreferenceHelper.isFirstLaunch;
 import static hotchemi.android.rate.PreferenceHelper.setInstallDate;
+import static hotchemi.android.rate.PreferenceHelper.getCustomEventCount;
+import static hotchemi.android.rate.PreferenceHelper.setCustomEventCount;
 
 public final class AppRate {
 
@@ -28,6 +32,8 @@ public final class AppRate {
 
     private int remindInterval = 1;
 
+    private final HashMap<String, Long> customEventCounts = new HashMap<>();
+
     private boolean isDebug = false;
 
     private AppRate(Context context) {
@@ -72,6 +78,11 @@ public AppRate setRemindInterval(int remindInterval) {
         return this;
     }
 
+    public AppRate setMinimumEventCount(String eventName, long minimumCount) {
+        this.customEventCounts.put(eventName, minimumCount);
+        return this;
+    }
+
     public AppRate setShowLaterButton(boolean isShowNeutralButton) {
         options.setShowNeutralButton(isShowNeutralButton);
         return this;
@@ -173,6 +184,15 @@ public AppRate setStoreType(StoreType appstore) {
         return this;
     }
 
+    public AppRate incrementEventCount(String eventName) {
+        return setEventCountValue(eventName, getCustomEventCount(context,eventName) + 1);
+    }
+
+    public AppRate setEventCountValue(String eventName, long countValue) {
+        setCustomEventCount(context, eventName, countValue);
+        return this;
+    }
+
     public void monitor() {
         if (isFirstLaunch(context)) {
             setInstallDate(context);
@@ -190,7 +210,8 @@ public boolean shouldShowRateDialog() {
         return getIsAgreeShowDialog(context) &&
                 isOverLaunchTimes() &&
                 isOverInstallDate() &&
-                isOverRemindDate();
+                isOverRemindDate() &&
+                isOverCustomEventRequirements();
     }
 
     private boolean isOverLaunchTimes() {
@@ -205,6 +226,16 @@ private boolean isOverRemindDate() {
         return isOverDate(getRemindInterval(context), remindInterval);
     }
 
+    private boolean isOverCustomEventRequirements() {
+        for(Map.Entry<String, Long> eventRequirement : customEventCounts.entrySet()) {
+            Long currentCount = getCustomEventCount(context, eventRequirement.getKey());
+            if(currentCount < eventRequirement.getValue()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
     public boolean isDebug() {
         return isDebug;
     }
diff --git a/library/src/main/java/hotchemi/android/rate/PreferenceHelper.java b/library/src/main/java/hotchemi/android/rate/PreferenceHelper.java
index 6856a87..8e17a0f 100644
--- a/library/src/main/java/hotchemi/android/rate/PreferenceHelper.java
+++ b/library/src/main/java/hotchemi/android/rate/PreferenceHelper.java
@@ -18,6 +18,8 @@ final class PreferenceHelper {
 
     private static final String PREF_KEY_REMIND_INTERVAL = "android_rate_remind_interval";
 
+    private static final String PREF_CUSTOM_EVENT_KEY_PREFIX = "android_rate_custom_event_prefix_";
+
     private PreferenceHelper() {
     }
 
@@ -93,4 +95,20 @@ static boolean isFirstLaunch(Context context) {
         return getPreferences(context).getLong(PREF_KEY_INSTALL_DATE, 0) == 0L;
     }
 
+    /**
+     * Add a prefix for the key for each custom event,
+     * so that there is no clash with existing keys (PREF_KEY_LAUNCH_TIME, PREF_KEY_INSTALL_DATE, etc.)
+     */
+    static long getCustomEventCount(Context context, String eventName) {
+        String eventKey = PREF_CUSTOM_EVENT_KEY_PREFIX + eventName;
+        return getPreferences(context).getLong(eventKey, 0);
+    }
+
+    static void setCustomEventCount(Context context, String eventName, long eventCount) {
+        String eventKey = PREF_CUSTOM_EVENT_KEY_PREFIX + eventName;
+        SharedPreferences.Editor editor = getPreferencesEditor(context);
+        editor.putLong(eventKey, eventCount);
+        editor.apply();
+    }
+
 }
\ No newline at end of file