Trick or Treat Theme is a free personalization app developed by NOS Inc. for Android devices running on OS 13.0 or higher. This app is part of the My Launcher program that allows you to change the full-screen design of your device. Trick or Treat Theme offers a Halloween-inspired design that includes home screen icons, search and clock widgets, live wallpaper, and a rich set of themes.

The app offers a variety of design features, including a spooky "Trick or Treat!" theme that is sure to get you in the Halloween spirit. My Theme place settings can be changed for the home screen, live wallpaper, drawer screen, dock screen, menu screen, app icon, folder icon, indicator, dust box, lock screen background, clock widget, and search widget. This allows you to customize the look and feel of your device to your liking.