diff --git a/android/app/src/main/java/im/status/ethereum/RootUtil.java b/android/app/src/main/java/im/status/ethereum/RootUtil.java
deleted file mode 100644
index 5c74f566df..0000000000
--- a/android/app/src/main/java/im/status/ethereum/RootUtil.java
+++ /dev/null
@@ -1,40 +0,0 @@
-package im.status.ethereum;
-
-import java.io.File;
-import java.io.BufferedReader;
-import java.io.InputStreamReader;
-
-/** @author Kevin Kowalewski */
-public class RootUtil {
-    
-    public static boolean isDeviceRooted() {
-        return checkRootMethod1() || checkRootMethod2() || checkRootMethod3();
-    }
-
-    private static boolean checkRootMethod1() {
-        String buildTags = android.os.Build.TAGS;
-        return buildTags != null && buildTags.contains("test-keys");
-    }
-
-    private static boolean checkRootMethod2() {
-        String[] paths = { "/system/app/Superuser.apk", "/sbin/su", "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su", "/data/local/bin/su", "/system/sd/xbin/su",
-                "/system/bin/failsafe/su", "/data/local/su" };
-        for (String path : paths) {
-            if (new File(path).exists()) return true;
-        }
-        return false;
-    }
-
-    private static boolean checkRootMethod3() {
-        Process process = null;
-        try {
-            process = Runtime.getRuntime().exec(new String[] { "/system/xbin/which", "su" });
-            BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
-            return in.readLine() != null;
-        } catch (Throwable t) {
-            return false;
-        } finally {
-            if (process != null) process.destroy();
-        }
-    }
-}
diff --git a/android/app/src/main/java/im/status/ethereum/RootUtil.kt b/android/app/src/main/java/im/status/ethereum/RootUtil.kt
new file mode 100644
index 0000000000..c672984277
--- /dev/null
+++ b/android/app/src/main/java/im/status/ethereum/RootUtil.kt
@@ -0,0 +1,42 @@
+package im.status.ethereum
+
+import android.os.Build
+import java.io.BufferedReader
+import java.io.File
+import java.io.InputStreamReader
+
+object RootUtil {
+    
+    fun isDeviceRooted(): Boolean = 
+        checkRootMethod1() || checkRootMethod2() || checkRootMethod3()
+
+    private fun checkRootMethod1(): Boolean =
+        Build.TAGS?.contains("test-keys") ?: false
+
+    private fun checkRootMethod2(): Boolean {
+        val paths = arrayOf(
+            "/system/app/Superuser.apk",
+            "/sbin/su",
+            "/system/bin/su",
+            "/system/xbin/su",
+            "/data/local/xbin/su",
+            "/data/local/bin/su",
+            "/system/sd/xbin/su",
+            "/system/bin/failsafe/su",
+            "/data/local/su"
+        )
+        return paths.any { File(it).exists() }
+    }
+
+    private fun checkRootMethod3(): Boolean {
+        var process: Process? = null
+        return try {
+            process = Runtime.getRuntime().exec(arrayOf("/system/xbin/which", "su"))
+            BufferedReader(InputStreamReader(process.inputStream)).readLine() != null
+        } catch (t: Throwable) {
+            false
+        } finally {
+            process?.destroy()
+        }
+    }
+}