Replacing a TV with a projector changes what your phone has to do. The projector is the display, so your Android device becomes the remote, the media server, the calibration tool, and the audio bridge all at once. Here are the eight apps we lean on for a projector-only setup, tested against the messiness of real living rooms with mixed casting standards and Bluetooth speakers that never quite sync.
What to look for in a projector-only setup app
- Reliable casting to your projector’s built-in Android TV or Chromecast dongle
- Screen mirroring that survives Wi-Fi hiccups
- Media library front end that scales well on a big projection
- Keystone and colour calibration tools for the first setup pass
- Audio-sync fix for Bluetooth speakers offset from the picture
- Offline mode for movie night when the internet drops
Quick comparison
| App | Best for | Free plan | Starting price/mo | Standout feature |
|---|---|---|---|---|
| Kodi | Local media library | Yes | Free | Custom skins built for 100-inch screens |
| Plex | Streaming your own library | Yes | $5 | Direct-play from phone to any Chromecast |
| Jellyfin | Self-hosted alternative | Yes | Free | No account, no telemetry |
| Google Home | Chromecast control | Yes | Free | Handles most projector-embedded casters |
| AirScreen | AirPlay and Miracast in one | Yes | $2 | Works with projectors that lack casting hardware |
| VLC | Universal media playback | Yes | Free | Plays almost any file format your projector can’t |
| Screen Mirroring | Phone-to-projector mirroring | Yes | $3 | Adjusts framerate for low-latency slideshows |
| Sonos | Multi-room audio control | Yes | Free | Groups projector output with speaker zones |
| AudioRelay | Audio sync over Wi-Fi | Yes | $5 | Compensates for Bluetooth speaker lag |
Why a projector needs different apps than a TV
A projector is a screen, not a smart device. Many portable projectors ship with an underpowered Android TV build, and even fixed models usually run outdated firmware. Your phone picks up the slack: it launches content, calibrates the picture, and works around audio delays that TVs handle behind the scenes.
The apps below cover the parts of a smart TV that a projector-only setup lacks. Pick two or three based on how you watch.
The apps
1. Kodi — Best for a local media library
Kodi is the classic home-theater front end that scales beautifully on a large projection. The default Estuary skin looks clean at 100 inches, and add-on skins tune it for whatever aspect ratio your projector shoots. Point it at a network share and your movies get proper poster art and metadata.
Where it falls short: Requires a bit of setup. Expect an evening of pointing Kodi at your library and letting it scrape.
Pricing:
- Free: Open-source, full feature set
- Paid: None
Platforms: Android, Windows, macOS, Linux, Android TV
Download: Kodi on Aptoide
Bottom line: The best-looking home theater front end for a projector.
2. Plex — Best for streaming your own library
Plex turns any spare PC into a media server and lets your Android device stream from it. On a projector-only setup, the phone becomes the remote, and Plex handles direct-play to a Chromecast attached to the projector’s HDMI port.
Where it falls short: The free tier now shows ads on some content. Plex Pass at $5/mo removes them and adds hardware transcoding.
Pricing:
- Free: Server plus client, some ads
- Paid: Plex Pass at $5/mo removes ads and enables offline downloads
Platforms: Android, iOS, Web, Windows, macOS, Linux
Download: Plex on Aptoide
Bottom line: The friendliest way to stream your own library.
3. Jellyfin — Best for self-hosted freedom
Jellyfin is the open-source alternative to Plex with no ads, no account, and no telemetry. The Android client casts to Chromecast, and the server runs on almost anything, including a spare Raspberry Pi.
Where it falls short: Setup expects you to be comfortable with a bit of networking. Not the app to hand your parents.
Pricing:
- Free: Open-source, no paid tier
- Paid: None
Platforms: Android, Windows, macOS, Linux, Docker
Download: Jellyfin on Aptoide
Bottom line: The right choice if you want to own the whole stack.
4. Google Home — Best for Chromecast control
Google Home is Google’s control app for Chromecast and Nest hardware. If your projector has a built-in Chromecast or you added a dongle, this is the app that pairs it, updates firmware, and picks the target for casting.
Where it falls short: No control over non-Google casters. Projectors with Miracast or AirPlay need a different app.
Pricing:
- Free: Full-featured
- Paid: None
Platforms: Android, iOS
Download: Google Home on Aptoide
Bottom line: Required if there’s a Chromecast in the room.
5. AirScreen — Best for mixed casting standards
AirScreen turns your projector’s Android input into an AirPlay, Miracast, DLNA, and Chromecast receiver all at once. Useful when your projector has one casting standard and your guests bring another.
Where it falls short: Ad-supported free tier. Premium removes the interstitials and adds 4K support.
Pricing:
- Free: All casting standards, ad-supported
- Paid: Pro at $2/mo removes ads and unlocks 4K
Platforms: Android TV, Fire TV
Download: AirScreen on Aptoide
Bottom line: The universal receiver every projector should have installed.
6. VLC — Best for universal media playback
VLC plays almost every video format ever shipped, and it does so on almost every platform. When your projector chokes on a codec, VLC on your phone can transcode over the network or over a USB cable in the pinch.
Where it falls short: UI is functional rather than pretty. Nobody uses VLC for the aesthetics.
Pricing:
- Free: Open-source
- Paid: None
Platforms: Android, iOS, Windows, macOS, Linux
Download: VLC on Aptoide
Bottom line: Keep it installed for the file your projector’s stock player refuses.
7. Screen Mirroring — Best for phone-to-projector mirroring
Screen Mirroring apps are legion, but the paid tier here matters because default Android mirroring can bring latency that ruins video. Look for one that lets you tune framerate for the content type: slideshows can run at 15fps, video needs 30 or 60.
Where it falls short: Quality depends heavily on your Wi-Fi. A 2.4GHz network won’t support smooth mirroring.
Pricing:
- Free: Standard mirroring, ads
- Paid: Pro at $3/mo removes ads and unlocks framerate tuning
Platforms: Android
Download: Screen Mirroring on Aptoide
Bottom line: Only pay if you mirror often. Casting is usually enough.
8. Sonos — Best for multi-room audio
Sonos is the app for Sonos speakers, but the reason it matters here is grouping. On a projector-only setup, the projector’s built-in speaker is usually terrible. Route audio to a Sonos zone and you can group the room with your kitchen or hallway for movie-night audio.
Where it falls short: Only works with Sonos hardware. If you’re on a different brand, use their equivalent app.
Pricing:
- Free: Full-featured with hardware
- Paid: None
Platforms: Android, iOS
Download: Sonos on Aptoide
Bottom line: The best multi-room control app if you’re already in the ecosystem.
9. AudioRelay — Best for audio sync
AudioRelay streams your projector’s audio output to your phone over Wi-Fi. It’s the trick most Bluetooth-speaker users don’t know: instead of pairing the speaker to the projector (which introduces lag), pair it to your phone and pipe the audio wirelessly with an adjustable delay slider.
Where it falls short: Free tier caps quality. Premium unlocks lossless and low-latency modes.
Pricing:
- Free: Basic streaming, some format limits
- Paid: Premium at $5/mo unlocks lossless and low-latency modes
Platforms: Android, iOS, Windows
Download: AudioRelay on Aptoide
Bottom line: The single most useful audio fix for a projector-only home theater.
How to pick the right one
- If you have a local movie library: Kodi or Plex.
- If you want to own the whole stack: Jellyfin.
- If your projector has Chromecast built in: Google Home.
- If your projector is behind on casting standards: AirScreen turns it into a universal receiver.
- If your projector chokes on a codec: VLC.
- If your projector’s built-in speaker is bad: Sonos for multi-room or AudioRelay for Bluetooth-speaker sync.
Most projector-only households end up with Kodi or Plex plus Google Home or AirScreen plus AudioRelay running together.
FAQ
What is a projector-only home theater?
A projector-only home theater uses a projector as the main display instead of a TV. That shifts responsibility for streaming, casting, calibration, and audio routing to your phone or a connected media stick, since most projectors ship with underpowered smart software.
Which app fixes projector audio lag on Bluetooth speakers?
AudioRelay is the most effective fix. Route audio from the projector through your phone over Wi-Fi and pair the speaker with the phone, using AudioRelay’s delay slider to sync sound to picture.
Can I use a Chromecast with any projector?
Yes, as long as the projector has an HDMI input and USB power. Plug the Chromecast into HDMI, power it from USB or a wall adapter, and pair it with Google Home.
Is Jellyfin as good as Plex?
Jellyfin matches Plex on core streaming features and beats it on privacy: no account, no ads, no telemetry. Plex has friendlier setup and better shared-library features. Pick Jellyfin if self-hosting matters, Plex if convenience matters.
Do these apps work offline?
Kodi plays local files without internet. Plex and Jellyfin support offline downloads (Plex Pass required for the Plex feature). VLC plays any file you have on the phone. Streaming apps like AirScreen still need Wi-Fi.
