Your digital window
The custom-fit screen turns one window into an outward-facing display, with the strongest results in low light and at night.
The Pranos app works on iPhone and Android.
It comes with every kit and runs on iPhone with iOS 17 or later and Android 7.0 or later. It connects to your HoloGlass wirelessly, so you don’t need an adapter to make signs or play your photos and videos. (On Android, the app asks for location only to connect to your HoloGlass.)
Optional: HDMI screen mirroring
Also in every kit: the HDMI phone adapter and an HDMI cable, to show your phone’s whole screen (YouTube, live streams, games). Only this part depends on your device:
Not sure about HDMI with your device? Send us its exact model and we’ll check.
Not sure which window fits your car? Check my car ›
Required for your custom-fit screen
Fit check
Enter your car’s year, make and model, and the fit tool tells you right away which windows fit. Then choose your window above.
Your content
Play your own videos and photos, make it yourself, ask Pranos AI, or mirror your phone. All of it comes with every kit.

From your camera roll.
Upload them in the Pranos app and play them on your window. Play video only while parked.

Make it yourself.
Text, stickers, a background and a GIF, plus a QR code made from the link you type.

Say it or type it.
Describe the sign you want. Pranos AI designs it, then changes it each time you ask.

Straight from your phone.
No app needed. Whatever’s on your phone shows on your window: YouTube, live streams, games and most apps.
Phone → HDMI phone adapter → HDMI cable → HoloGlass. The adapter and cable come in every kit.
Your phone needs USB-C video output. iPhone 14 and older use Apple’s Lightning Digital AV Adapter, sold separately. Some streaming apps block mirroring.
Use while parked.
THE COMPLETE SYSTEM
A compact HoloGlass unit inside your vehicle lights a custom-fit screen on the glass. Your content appears outward for people to see.
The custom-fit screen turns one window into an outward-facing display, with the strongest results in low light and at night.
The HoloGlass unit mounts inside the vehicle and sends the image onto the screen. Nothing is mounted outside the car.
When your kit arrives, setup takes four steps.
Secure it inside with the included suction-cup mount.
Slide the screen made for your car into your window.
Plug into your vehicle and turn it on. Open the Pranos app and scan the code on your HoloGlass. No internet or account needed. Or screen mirror your phone with the included HDMI phone adapter and cable.
Frame the image on the screen, then play your content.
MADE FOR YOUR CAR
We make your screen to match your car’s window pattern, from the make and model you enter with your order, so it fits your window exactly and you can install it yourself. The Rear Side Door and Back Windshield screens slide right into place; the Front Windshield is a roll-up film you lay over the windshield and roll up when you’re done.
Fits most sedans, SUVs, crossovers and pickups with rear side windows (crew cab; most extended cabs). Light and moderate tint generally work; very dark tint reduces brightness.
For SUVs and crew-cab pickups with a sunroof or glass roof. The HoloGlass unit mounts on the roof glass.
The largest display, for parked shows and events. Roll the screen up and put it away before you drive. Needs a sunroof or glass roof and enough cabin length.
CORE FEATURES
Made for your car and the window you choose. Removable and reusable.
Send signs, photos, and videos from your phone, and design new signs with Pranos AI.
Every kit includes the HDMI phone adapter for screen mirroring and an HDMI cable, so you can skip the app and mirror your phone directly or stream live. Needs a phone with USB-C video output.
Play sound on any Bluetooth speaker you own. Pair it in the HoloGlass unit’s settings, using the included remote.
Sharp and bright at dusk and at night.
No measuring and no installer needed. Rear Side Door and Back Windshield screens slide right into place; the Front Windshield film rolls out over the windshield.
EVERYTHING YOU NEED
Everything you need to turn one window into a digital display, from $289. The Pranos app and Pranos AI are included.
HoloGlass unitThe compact unit that lights your screen from inside the car, with 40 GB of storage for your signs, photos and videos (each file under 4 GB).
Custom-fit screenMade for the vehicle information entered with your order.
Mounting and powerSuction-cup mount, power inverter, power cable, and remote.
HDMI phone adapter and HDMI cableScreen mirror your phone directly, or stream live. Needs a phone with USB-C video output.
Setup guide and storage bagEverything stays together between installations.
The Pranos app works on iPhone with iOS 17 or later and on Android 7.0 or later.
Order HoloGlassAFTER YOU ORDER
Current terms include a $75 restocking fee because every screen is made for your car. Every kit has a 1-year warranty.
Read full terms ›Call the Pranos team for guidance during mounting, alignment, inputs, or playback.
Contact support ›Stopped in traffic isn’t parked. Some places restrict any display while the car moves, even a still image. Check your local rules, and turn HoloGlass off where it isn’t allowed.
Safety and local rules ›Best light
Bright midday sun washes it out. As the light fades, the picture gets stronger.
In fall and winter, dusk comes early.
Dusk
NightGOOD TO KNOW
Straight answers to the questions customers ask most before choosing HoloGlass.
Questions or orders? Call or text (415) 754-8430.
The Pranos app works on iPhone and Android.
It comes with every kit and runs on iPhone with iOS 17 or later and Android 7.0 or later. It connects to your HoloGlass wirelessly, so you don’t need an adapter to make signs or play your photos and videos. (On Android, the app asks for location only to connect to your HoloGlass.)
Optional: HDMI screen mirroring
Also in every kit: the HDMI phone adapter and an HDMI cable, to show your phone’s whole screen (YouTube, live streams, games). Only this part depends on your device:
Not sure about HDMI with your device? Send us its exact model and we’ll check.
A compact HoloGlass unit mounts inside the vehicle and lights a custom-fit screen placed on the window. The content is viewed from outside the car.
Use the fit tool on this page. It tells you right away which windows fit your car. Then enter your car’s year, make and model with your order, and we make your screen to match its window pattern. Unusual vehicle? Text us a photo at (415) 754-8430, and our team checks it before we make your screen.
HoloGlass is designed for low-light and nighttime use. The image becomes stronger as the surrounding light decreases.
Yes. The kit is designed for customer installation and includes the mounting hardware and setup guide. First-time setup varies by vehicle. Later installations are faster.
Every way to play comes with every kit. In the Pranos app, design signs with Pranos AI or the sign builder, send your own photos and videos, and build playlists. The HDMI phone adapter and an HDMI cable come in every kit too, so you can screen mirror your phone directly or stream live (it needs a phone with USB-C video output).
Yes, on any Bluetooth speaker you own. Pair it in the HoloGlass unit’s settings, using the included remote.
No. It runs on your car’s power, through the 12-volt socket and the included power inverter. Depending on the car, that socket turns off with the car, stays on for a while, or stays on; your owner’s manual says which. When the car isn’t running, HoloGlass uses your car battery, and a low battery may not start the car. So keep that time short, and unplug the inverter when you leave the car.
Not to send or play photos and videos stored on your phone. Ones kept only in iCloud need internet to download first. Pranos AI needs internet to design a sign: the app uses your phone’s mobile data, then reconnects to your HoloGlass (you may be asked to tap Join). No internet? Use the sign builder, which works offline.
Play video only while parked. Stopped in traffic isn’t parked. Before you drive, with your phone connected to your HoloGlass, switch the Pranos app to Driving: a playing video pauses on the frame it’s on, a photo or sign stays up, and the app won’t play or upload anything new until you switch back to Parked. Driving is a switch you set on each phone, and it doesn’t sense motion. Driving covers what the Pranos app plays. It doesn’t control HDMI mirroring or the HoloGlass unit’s other inputs. Some places restrict any display while the car moves, even a still image, so check your local rules and turn HoloGlass off where it isn’t allowed. You’re responsible for what your window shows. Front Windshield: parked only. Roll the screen up and put it away before you drive.
Update it for free. You install the software update from a USB stick with the guide we email you. Then the new Pranos app (iPhone, iOS 17 or later) works with your HoloGlass directly. The Pranos media player isn’t needed. Until you update, the app will ask you to.
Before you order