# Halloween window projection app: put ghosts in your windows tonight

> Halloween window projection app for iPhone and iPad: fit ghostly loops inside each window frame from your phone. No laptop, Halloween loops built in.

Published 12 September 2026 · By Abhinav Bhardwaj

**TL;DR:** Need: an iPhone or iPad, a small HDMI or AirPlay projector, EasyMapper Studio, and optionally a sheer curtain for a rear-projection ghost. Time: about 10 minutes for the first window. Halloween loops come built in.

**Halloween window projection app** EasyMapper Studio fits ghostly figures, flickering candlelight and watching eyes exactly inside each window frame — mapped from an iPhone or iPad, with no laptop. Light that stops precisely at the frame reads as *something happening inside the house*, which is what makes window projection the highest-impact Halloween effect per watt.

The app now ships with built-in Halloween loops, so a freshly installed copy can haunt a window the same night.

## How it works in three steps

1. **Set the projector where it can see the window.** Indoors pointing out through a sheer curtain works brilliantly and keeps everything dry; outdoors on a tripod works too.
2. **Add a layer per window** in EasyMapper Studio and drag its corners onto the real frame. Each window is its own layer, so each can be haunted differently.
3. **Drop a loop on each layer and press play.** A drifting ghost in one window, a candle flicker in another, eyes that open in a third.

## The rear-projection trick

Hang a sheer white curtain or rear-projection film inside the glass and project from inside the room. The figure appears to float *in* the window, the projector stays weatherproof, and passers-by can't see the beam source. This is the classic "ghost in the window" setup, and mapping the layer to the frame is what keeps the illusion tight.

## What you need

A single window needs far less brightness than a facade — even a small 500–1,000 lumen projector reads well after dark. Any model with HDMI or AirPlay works; see [how to pick a projector](https://easy-mapper.xyz/projector) and [how to connect your phone](https://easy-mapper.xyz/connection).

## Price

Free to download; Premium ($7.99/month or $39.99/year, with a trial) unlocks the full feature set. No desktop license, no laptop.

Want the whole house, not just the windows? The [Halloween projection mapping app](https://easy-mapper.xyz/use-cases/halloween-projection-mapping-app) page covers doors, garages and full facades, and the [Halloween guide](https://easy-mapper.xyz/articles/halloween-projection-mapping-house) walks through the complete setup.

Source: https://easy-mapper.xyz/use-cases/halloween-window-projection-app