diff --git a/xwords4/android/scripts/uninstall.sh b/xwords4/android/scripts/uninstall.sh
index 71a660f6a..94d901a9f 100755
--- a/xwords4/android/scripts/uninstall.sh
+++ b/xwords4/android/scripts/uninstall.sh
@@ -1,5 +1,36 @@
 #!/bin/sh
 
-for DEVICE in $(adb devices | grep '^emulator' | sed 's/device//'); do
-    adb -s $DEVICE uninstall org.eehouse.android.xw4
+set -u -e
+
+usage() {
+    [ $# -ge 1 ] && echo "Error: $1"
+    echo "usage: $(basename $0) [-e] [-d]"
+    exit 1
+}
+
+DEVICES=""
+
+while [ $# -ge 1 ]; do
+    case $1 in
+        -e)
+            DEVICES="$DEVICES $(adb devices | grep '^emulator' | awk '{print $1}')"
+            ;;
+        -d)
+            DEVICES="$DEVICES $(adb devices | grep -v emulator | grep 'device$' | awk '{print $1}')"
+            ;;
+        *)
+            usage
+            ;;
+    esac
+    shift
 done
+
+COUNT=0
+
+for DEVICE in $DEVICES; do
+    echo $DEVICE
+    adb -s $DEVICE uninstall org.eehouse.android.xw4
+    COUNT=$((COUNT+1))
+done
+
+echo "removed from $COUNT devices/emulators"