diff --git a/signBundle.sh b/signBundle.sh
new file mode 100755
index 000000000..015f0c9d7
--- /dev/null
+++ b/signBundle.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+# Set path to your Android keystore and your keystore alias here, or put them in your environment
+[ -z "$ANDROID_KEYSTORE_FILE" ] && ANDROID_KEYSTORE_FILE=~/.android/debug.keystore
+[ -z "$ANDROID_KEYSTORE_ALIAS" ] && ANDROID_KEYSTORE_ALIAS=androiddebugkey
+
+APPNAME=`grep AppName AndroidAppSettings.cfg | sed 's/.*=//' | tr -d '"' | tr " '/" '---'`
+APPVER=`grep AppVersionName AndroidAppSettings.cfg | sed 's/.*=//' | tr -d '"' | tr " '/" '---'`
+
+cd project
+
+./gradlew bundleRelease || exit 1
+
+cd app/build/outputs/bundle/release || exit 1
+
+# Remove old certificate
+cp -f app.aab ../../../../../../$APPNAME-$APPVER.aab || exit 1
+# Sign with the new certificate
+echo Using keystore $ANDROID_UPLOAD_KEYSTORE_FILE and alias $ANDROID_UPLOAD_KEYSTORE_ALIAS
+stty -echo
+apksigner sign --ks $ANDROID_UPLOAD_KEYSTORE_FILE --ks-key-alias $ANDROID_UPLOAD_KEYSTORE_ALIAS ../../../../../../$APPNAME-$APPVER.apk || exit 1
+stty echo
+echo