diff --git a/assets/sync.sh b/assets/sync.sh
new file mode 100644
index 0000000..753fe98
--- /dev/null
+++ b/assets/sync.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+
+set -e
+
+APK_VERSION="2.4.0"
+APK_VERSION=${APK_VERSION//[\"\']}
+JAR_VERSION="0.1.5"
+
+cd "$(dirname $0)"
+
+
+function download() {
+	local URL=$1
+	local OUTPUT=$2
+	echo ">> download $URL -> $OUTPUT"
+	curl -L "$URL" --output "$OUTPUT"
+}
+
+function download_apk(){
+	local VERSION=$1
+	local NAME=$2
+	local URL="https://github.com/openatx/android-uiautomator-server/releases/download/$VERSION/$NAME"
+	download "$URL" "$NAME"
+	unzip -tq "$NAME"
+}
+
+function download_jar() {
+	local URL="https://public.uiauto.devsleep.com/u2jar/$JAR_VERSION/u2.jar"
+	https_proxy= download "$URL" "u2.jar"
+}
+
+echo "APK_VERSION: $APK_VERSION"
+
+download_jar
+download_apk "$APK_VERSION" "app-uiautomator.apk"
+cat > version.json <<EOF
+{
+  "com.github.uiautomator": "$APK_VERSION"
+}
+EOF