Bengala: Projection Mapping
3D Halloween Projector Effects
Free · In‑App Purchases
Christmas effects are here: snow globes, gift wrap, a fireplace and a glowing garland. Drag four corners onto any wall. Free to try.
Bengala is a projection mapping studio for iPhone and iPad. Connect a projector, drag the corners of a shape onto a window, a door, a pumpkin or a wall, and choose what plays inside it. The first setup takes a few minutes.
HOW IT WORKS
1. Plug in a projector with an HDMI adapter, or start AirPlay screen mirroring.
2. Add a shape: rectangle, circle or stencil. A rectangle takes extra corners for odd surfaces.
3. Drag its corners until it sits on the real object. The picture bends to fit, so a flat video still looks straight when the projector sits at an angle.
4. Pick an effect, a photo, a video or a color.
The preview on your phone shows what the projector shows. You can build everything before you plug anything in.
EFFECTS SORTED BY THEME
Effects are grouped by theme: animals, illusions for doors and windows, party, fire and nature, space, neon and abstract. Christmas goes first from mid November to early January. Every animal is rendered in 3D, and so are some Halloween effects.
Effects download when you tap them, so the app stays small and new ones arrive without an update. You need a connection the first time you use an effect. After that it plays offline.
WHAT A SHAPE CAN SHOW
- A looping effect
- A music effect that moves with the sound around the phone
- Your own photo or video
- A plain color or an animated color
- One shape at a time, or the whole canvas
Use one shape per surface: the window, the door, the pumpkin on the porch. Each keeps its own content.
PROJECTING THROUGH A WINDOW?
Projecting from behind frosted film or a shower curtain flips the picture. Turn on Mirror output and it reads the right way for the people outside.
IN THE EDITOR
- A new project opens with an effect already playing
- Pinch to zoom in and nudge a corner into place
- Undo and redo
- Guides: while you move a shape, the projector shows its grid. A second after you let go it fades. Tap the empty canvas to hide the outlines too
- Present mode: the phone goes dark, the projector keeps playing
- Stencils: pick a silhouette, or bring a PNG with a transparent background (Pro) and its outline becomes the shape
WORKS WITH
Any projector with an HDMI input, through a Lightning or USB-C adapter, or any projector or TV that supports AirPlay. HDMI is sharper and has less delay. Use a dark room. For windows, we suggest at least 300 ANSI lumens.
A color lamp in Apple Home, if you want one. Effects with a lamp icon change its color at the right moment.
A NOTE ON FLASHING
Some effects flash or strobe. If you or someone watching is sensitive to flashing light, check each effect on your phone first.
FREE AND PRO
Free: 1 project, a set of free effects (Light Drop lights a lamp), the Pulse music effect, and a small Bengala watermark that drifts across the projection.
Pro: unlimited projects, every effect, no watermark, every stencil shape and your own PNG stencils, every animated color, and import from the Files app.
New 3D effects are added regularly, and Pro includes them.
Bengala Pro is available as a weekly subscription at $5.99 per week, a yearly subscription at $39.99 per year with a 3-day free trial for new subscribers, or a one-time lifetime purchase at $89.99 with no renewal. Prices are for the United States and may differ in other countries. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple Account settings after purchase. Any unused part of a free trial is forfeited when you buy a subscription.
Terms of Use: https://bengala.app/terms
Privacy Policy: https://bengala.app/privacy
New: music effects. Pulse, Bricks, Mosaic, Bars, Rings and Scan move with the music your phone hears. Find them in the new Music tab. Pulse is free, the rest come with Pro. The microphone is used only while one is on screen, and sound never leaves your phone.
Also new: some effects can light a color lamp in Apple Home. Look for the lamp icon. Light Drop is free.
You can now turn a shape: twist two fingers on it.
Christmas effects are in the library and move to the front on November 15.
Privacy: the app now also sends your first answers (what you want to light up, whether you have a projector, the look you like, where you heard about us) to RevenueCat with a random id, and uses Apple's ad attribution code. Details in the privacy policy.
We read every email at hello@bengala.app.
The developer, Igal Daniels, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Igal Daniels
- Size
- 84.1 MB
- Category
- Entertainment
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later.
- iPhone
- Languages
- English and Spanish
- Age Rating
9+
- 9+
- Infrequent
Horror/Fear Themes
- In-App Purchases
Yes
- Bengala Pro Weekly $5.99
- Bengala Pro Yearly $39.99
- Bengala Pro Lifetime $89.99
- Copyright
- © 2026 Igal Daniels