diff --git a/app/build.gradle b/app/build.gradle
index 03afea0..8a00a28 100755
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -25,6 +25,7 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.2"
     implementation 'com.android.support:design:28.0.0'
     implementation "com.android.support:support-v4:28.0.0"
     implementation project(path: ':library')
diff --git a/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.java b/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.java
deleted file mode 100755
index 252541f..0000000
--- a/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.java
+++ /dev/null
@@ -1,71 +0,0 @@
-package com.andreacioccarelli.billingprotectorsample;
-
-import android.annotation.SuppressLint;
-import android.os.Bundle;
-import android.app.Activity;
-import android.os.Vibrator;
-import android.support.design.widget.FloatingActionButton;
-import android.view.View;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import com.andreacioccarelli.billingprotector.*;
-import java.util.concurrent.TimeUnit;
-
-public class DetectionActivity extends Activity {
-
-    BillingProtector bp;
-    private int i = 0;
-
-    @SuppressLint("SetTextI18n")
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity);
-
-        bp = new BillingProtector(this, false);
-        runRefresh();
-
-        FloatingActionButton fab = findViewById(R.id.fab);
-        fab.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Vibrator vib = (Vibrator) getSystemService(VIBRATOR_SERVICE);
-                vib.vibrate(100);
-
-                runRefresh();
-            }
-        });
-    }
-
-    void runRefresh() {
-        new Thread(new Runnable() {
-            @Override
-            public void run() {
-                long mills = System.currentTimeMillis();
-                updateData();
-
-                long millsAfter = System.currentTimeMillis();
-                long diff = millsAfter - mills;
-                final long seconds = TimeUnit.MILLISECONDS.toSeconds(diff);
-
-                runOnUiThread(new Runnable() {
-                    @Override
-                    public void run() {
-                        Toast.makeText(DetectionActivity.this, "Re-computed. time: " + seconds + "s", Toast.LENGTH_SHORT).show();
-                    }
-                });
-            }
-        }).run();
-    }
-
-    @SuppressLint("SetTextI18n")
-    void updateData() {
-        final TextView mxp = findViewById(R.id.mxp);
-        mxp.setText(
-                "i=" + i++ +
-                "isRootInstalled: " + bp.isRootInstalled() +
-                "\n\npirateAppsList: " + bp.getPirateAppsList()
-        );
-    }
-}
diff --git a/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.kt b/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.kt
new file mode 100755
index 0000000..4ee899c
--- /dev/null
+++ b/app/src/main/java/com/andreacioccarelli/billingprotectorsample/DetectionActivity.kt
@@ -0,0 +1,56 @@
+package com.andreacioccarelli.billingprotectorsample
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import android.app.Activity
+import android.content.Context
+import android.os.Vibrator
+import android.support.design.widget.FloatingActionButton
+import android.widget.TextView
+import android.widget.Toast
+
+import com.andreacioccarelli.billingprotector.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import java.util.concurrent.TimeUnit
+import kotlin.coroutines.CoroutineContext
+import kotlin.system.measureTimeMillis
+
+class DetectionActivity : Activity() {
+
+    private lateinit var bp: BillingProtector
+
+    @SuppressLint("SetTextI18n")
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity)
+
+        bp = BillingProtector(this)
+        runRefresh()
+
+        val fab = findViewById<FloatingActionButton>(R.id.fab)
+        fab.setOnClickListener {
+            val vib = getSystemService(Context.VIBRATOR_SERVICE) as Vibrator
+            vib.vibrate(100)
+
+            runRefresh()
+        }
+    }
+
+    private fun runRefresh() = CoroutineScope(Dispatchers.Main).launch {
+        val millis = measureTimeMillis {  updateData() }
+        val seconds = TimeUnit.MILLISECONDS.toSeconds(millis)
+
+        runOnUiThread {
+            Toast.makeText(this@DetectionActivity, "Re-computed. time: ${seconds}s", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    private var i = 0
+    @SuppressLint("SetTextI18n")
+    private suspend fun updateData() {
+        val mxp = findViewById<TextView>(R.id.mxp)
+        mxp.text = "i=${i++}\nisRootInstalled: ${bp.isRootInstalled()}\npirateAppsList: ${bp.getPirateAppsListAsync()}"
+    }
+}
diff --git a/app/src/main/res/layout/activity.xml b/app/src/main/res/layout/activity.xml
index 9effebc..3873e4c 100755
--- a/app/src/main/res/layout/activity.xml
+++ b/app/src/main/res/layout/activity.xml
@@ -14,7 +14,7 @@
 
         <android.support.v7.widget.Toolbar
             android:id="@+id/toolbar"
-            app:title="Java activity"
+            app:title="Kt activity"
             android:layout_width="match_parent"
             android:layout_height="?attr/actionBarSize"
             android:background="?attr/colorPrimary"
diff --git a/library/src/main/java/com/andreacioccarelli/billingprotector/BillingProtector.kt b/library/src/main/java/com/andreacioccarelli/billingprotector/BillingProtector.kt
index 2df1ea5..e63d9d3 100755
--- a/library/src/main/java/com/andreacioccarelli/billingprotector/BillingProtector.kt
+++ b/library/src/main/java/com/andreacioccarelli/billingprotector/BillingProtector.kt
@@ -9,6 +9,7 @@ import com.andreacioccarelli.billingprotector.data.PirateApp
 import com.andreacioccarelli.billingprotector.data.SelectionCriteria
 import com.andreacioccarelli.billingprotector.utils.RootUtils
 import com.andreacioccarelli.billingprotector.utils.assembleAppList
+import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
@@ -18,7 +19,8 @@ import kotlinx.coroutines.withContext
  */
 class BillingProtector(
     private val context: Context,
-    private val simulateSafeEnvironment: Boolean = false
+    private val simulateSafeEnvironment: Boolean = false,
+    private val coroutineContext: CoroutineDispatcher = Dispatchers.Default
 ) {
     /**
      * Lazily-evaluated and statically-generated pirate apps list
@@ -49,7 +51,7 @@ class BillingProtector(
      * */
     suspend fun getPirateAppsListAsync(): List<PirateApp> {
         if (simulateSafeEnvironment) return emptyList()
-        return withContext(CoroutineScope(Dispatchers.Default).coroutineContext) { startScan() }
+        return withContext(coroutineContext) { startScan() }
     }
 
     /**