OBS Camera App: How to Use Your Phone as a Camera in OBS

People searching for an "OBS camera app" usually want one of two things. They may want a phone app that turns a smartphone into a video source for OBS Studio on a computer. Or they may mean the virtual camera inside OBS Studio, which passes OBS's finished picture to video-call apps. Most setups use both: the phone app gets the image into OBS, and the OBS virtual camera sends it on to the call.

The short answer

OBS Studio cannot read a phone's camera on its own. To use a phone as a camera, you need a bridge app on the phone, and usually a matching companion program, driver or OBS plugin on the computer. Once the phone's video appears in OBS as a source, you can add overlays, crop it or change the background. To use that result in Zoom, Teams, Meet or a similar app, start OBS's Virtual Camera and choose it as the camera in the call app.

OBS Studio itself is free and open source. Whether the phone side is free depends on the bridge app you pick. No verified pricing, feature lists or test results for specific bridge apps were available for this guide, so it does not recommend a particular product. Instead, it explains what to check so you can judge any app yourself.

How a phone reaches OBS

Bridge apps generally use one of a few connection routes. Knowing which one an app uses tells you what you will need to install and what can go wrong.

• USB cable: the phone connects directly to the computer. This route tends to be the most stable, but it may need a desktop driver or companion app. On Android, it may also require USB debugging, a developer setting.
• Local Wi-Fi: the phone and computer must be on the same network. This needs no cable, but picture smoothness depends on network quality. Guest networks or networks that isolate devices from each other can block the connection.
• Network video protocols: some apps send video using a streaming or network-video standard. OBS then receives it through a built-in source or a plugin. This approach is flexible, but setup is more technical.
• Virtual webcam driver: some apps install a driver that makes the phone appear on the computer as an ordinary webcam. OBS, and other apps, can then pick it up as a Video Capture Device.

What to check before choosing an app, especially a free one

Free bridge apps often hold back some features for a paid tier. Check the app's own store listing and documentation for each of the following points. These are general areas where apps tend to differ, not confirmed details of any specific app.

• Platform match: the app must support your phone (iOS or Android) and your computer's operating system (Windows, macOS or Linux).
• Computer-side component: does it need a desktop client, a driver or an OBS plugin, and is that component kept up to date for your version of OBS?
• Connection type: does it support USB, Wi-Fi or both?
• Free-tier limits: check for lower maximum resolution, watermarks, time limits or locked features such as the rear camera.
• Audio: does it send the phone's microphone as well as the video? Many setups carry video only.
• Controls: can you adjust focus, exposure, zoom and orientation from the phone or the computer?
• Permissions and privacy: what access does it request on the phone and the computer, and does the video stay on your local network or pass through an outside server?

Step-by-step: phone camera into OBS on a PC

The exact menu names depend on the bridge app you choose. The overall sequence is the same for most of them.

• 1. Install OBS Studio on the computer, and install the bridge app on the phone.
• 2. Install the app's computer-side component (desktop client, driver or OBS plugin) if it has one, then restart OBS.
• 3. On the phone, open the app and allow camera access when prompted. If you plan to send the phone's sound, allow microphone access too.
• 4. Connect the devices. Either plug in the USB cable, or confirm both devices are on the same Wi-Fi network and enter or select the connection details the app shows.
• 5. In OBS, open the Sources panel and click the plus button. Add the source type the app's instructions name: usually a Video Capture Device, or a plugin-specific or network source.
• 6. Select the phone from the device list. Then check that a live picture appears in the OBS preview.
• 7. Adjust resolution, orientation and framing in the app or in the source properties until the picture looks right.

Using the phone camera in a video call

• 1. In OBS, click Start Virtual Camera.
• 2. Open your call app's video settings and select the OBS virtual camera as the camera. Do not select the phone device directly, or your OBS edits will not appear.
• 3. On macOS, grant OBS camera permission in System Settings if prompted. On Windows, check the Camera privacy settings, which allow apps to use cameras. A blocked permission can make the device appear but show a black frame.
• 4. If the call app was already open when you started the virtual camera, close and reopen it so it detects the new device.

How to verify it actually works

There are three separate checks, and passing one does not guarantee the next. First, camera access: the phone app has permission and the device appears in the OBS or call-app list. Second, video capture: a live, moving picture shows in the OBS preview and in the call app's self-view, not a frozen frame, black screen or placeholder logo. Third, call quality: the other person sees a clear, smooth picture. Confirm this with a short test call or the call app's preview, because a picture that looks fine locally can still degrade over a weak Wi-Fi link or upload connection.

Treat audio the same way, separately. A microphone that appears in a device list is only detected. Seeing the input meter move shows that it is receiving sound. Only a test recording or test call confirms that speech is intelligible. If the bridge app sends no audio, choose your computer's microphone or a headset in the call app instead.

Common problems and quick fixes

• Phone not listed in OBS: check that the computer-side component is installed. Restart OBS, and reconnect the cable or rejoin the same Wi-Fi network.
• Black screen in OBS: make sure the phone app is open and in the foreground. Also check that no other program is using the same camera device at the same time.
• Black screen only in the call app: confirm the virtual camera is started, then check the operating system's camera permissions for that call app.
• Choppy or delayed video: switch to USB if the app supports it, or lower the resolution or frame rate. Moving closer to the router also helps.
• Phone overheating or battery draining: keep the phone on a charger, take it out of thick cases and lower the resolution.

A note on backgrounds

There are three different ways to change what appears behind you. A physical background is whatever is really behind you, and it works with any camera route. A virtual call effect is a blur or replacement image applied live, either by OBS filters or plugins or by the call app itself; how well it works depends on lighting and the tool's processing. An edited photo background is changed afterward in an image editor and does not affect a live call. Using a phone as a camera does not change these options, though a sharper phone image can make edges easier for virtual effects to detect.

What this guide could not confirm

No verified evidence was available about specific bridge apps, including their names, current prices, free-tier limits, supported resolutions, latency or compatibility with particular OBS versions. Before committing to an app, check its current store listing, its official setup instructions and recent update history. Then run the three checks above on your own equipment.