OneScreen is a Mac app that streams an existing display or virtual iPad-sized display to the OneScreen for iPad companion app over your local network, turning any iPad into a dedicated viewing monitor. It streams over the built-in HEVC engine by default — nothing extra to install — or over NDI when you need compatibility with other NDI apps, plus private pairing, live display controls, and Capture One integration.
- Create a virtual, iPad-sized display on demand so you can stream a dedicated workspace instead of mirroring an existing screen — portrait or landscape, placed on the side of the desktop you choose.
- Stream an existing Mac display when needed for manual capture setups or advanced workflows.
- Choose your streaming engine — the built-in HEVC engine is the default, needs nothing installed, and streams at a data rate you set; NDI works with other NDI apps and tools. Each engine remembers its own quality settings.
- Open or Private stream modes, with QR code or manual passcode pairing to keep your stream off other receivers on the network. Over HEVC, private sessions also encrypt the video on the wire.
- Inline stream controls to pause, resume, trigger an intermission screen, lock the receivers, or rotate the display — plus Keep Cursor Off Display and Keep Window Full Screen from the stream behavior menu.
- Floating Preview window that mirrors what the iPad is currently showing, so you don't have to look at the receiver to check the output.
- Manage connected iPads from the Mac, including custom names and color labels, brightness, display profile selection and profile sync, framelines control, identify, return-to-live, per-receiver pause, and per-receiver lock.
- See how every iPad is actually doing — signal strength and live data rate per receiver, plus battery, right in the receivers list.
- Pop the receivers list into a floating window that stays on top and carries its own pause, intermission, and lock controls, so you can work away from the menu bar.
- One-click exits from anything holding the stream, with banners for Capture One Live View and iPad review mode that drop from the menu bar icon, so you don't need the menu open.
- Power Save dims all of the connected receivers to extend iPad battery life during down time with the press of a button, and restores them on demand — or tap the leaf on one iPad to wake just that one.
- Tune the stream to your network — quality presets, or a custom stream size, frame rate, 20–120 Mbps data rate, 8-bit or 10-bit depth, and output color space, with a Stream Info strip that always shows exactly what is being sent.
- Sharpening gives HEVC streams crisper text and edges on the iPad — Off, Low, Medium, or High — and you can change it mid-stream to judge the result.
- Intermission cards built from a logo plus text, a title card image, or a solid color, with animated GIF logos and title cards playing on every receiver, optionally mirrored to every secondary display and to the main display with the menu bar kept on top, with a local Test mode for checking the card before a shoot.
- Automatic display fallback keeps the stream alive if the source display disconnects — or you can have it terminate cleanly instead.
- Your Mac stays awake for as long as a stream is running, so it can't idle-sleep mid-session and drop every receiver at once — and the screen stays awake while an iPad is watching. If the Mac sleeps anyway, the iPads hold on the intermission card until it wakes.
- Global shortcuts for pause/resume, intermission, preview window, full screen, lock controls, Power Save, framelines, recalling the cursor to the main display, stopping review mode, and starting or stopping Live View on the iPad.
- Stream Deck plugin, installed from Settings > Shortcuts, puts OneScreen's shortcut commands on Stream Deck keys, and each key lights up while its control is on (Stream Deck app 7.1 or later).
- Capture One Controls integration iPad companion actions like navigation, ratings, color tags, camera controls, capture button, AirDrop, Live View, overlays, grid, guides, clear compare, and image rotation toggles.
- Control Deck turns the iPad into a control surface beside your primary monitor to rate, tag, and review captures — with a live preview thumbnail and per-shot EXIF and exposure info (part of Capture One Controls).
- Capture One Browser lets every iPad browse a Capture One Studio session shared with Live for Studio — folders and full-size pictures, star ratings and color tags, and new captures as they come in — with or without a stream (a separate purchase in OneScreen for iPad).
- Shot list and moodboard — share a PDF from the menu bar, and every iPad can open it, check off and mark up shots, and see the same marks as everyone else.
OneScreen includes a 3-day free trial with full streaming on each Mac. You can purchase a license to keep using the Mac app after the trial.
If you want to test longer before purchasing, email graham@spotdgtl.com for an extended trial license. License activation, validation, revalidation, and removal are all handled in Settings > License.
OneScreen for iPad is available on the App Store: download OneScreen for iPad on the iPad you want to stream to. The Mac app's Settings > About also shows a QR code you can point the iPad's camera at to open the listing directly.
The iPad app carries the live viewer, a stream dashboard for switching between Macs and streams, framelines, display adjustments, the shot list and moodboard, and a draggable connection-quality HUD that shows how the link to the Mac is holding up.
To use the Capture One companion features, purchase and enable Capture One Controls inside OneScreen for iPad. This also unlocks the Control Deck, which turns the iPad into a control surface beside your primary monitor for rating, tagging, and reviewing captures.
Capture One Browser is a separate purchase in OneScreen for iPad. With Live for Studio sharing on in Capture One Studio, the iPad browses the session's folders and pictures, rates and color-tags them, and follows new captures, with or without a stream.
Keep your Mac and iPad on the same local network, or connect them with a USB or Ethernet cable, then start a stream from OneScreen for Mac and join it from OneScreen for iPad. With a cable plugged in, the video travels over the cable.
- macOS 14.0 or later
- OneScreen for iPad, on the same local network as the Mac or connected to it by a USB or Ethernet cable
- Screen Recording permission granted to OneScreen
- Local Network access allowed for OneScreen
- Optional: Accessibility permission for Keep Cursor Off Display, full screen helpers, and window placement
- Optional: NDI Tools installed on the Mac, and only if you switch the streaming engine to NDI — the HEVC engine is built in and needs nothing installed
- Optional: Capture One, for companion controls and window targeting — and Capture One Studio with Live for Studio sharing on, for the Capture One Browser
- Optional: the Stream Deck app 7.1 or later, for the Stream Deck plugin
- Download the latest release.
- Move
OneScreen.appto/Applications. - Launch it from
/Applications, Launchpad, or Spotlight. - Complete the first-run setup inside the app.
- Grant Screen Recording when prompted.
- Allow Local Network access when macOS asks.
- Install NDI Tools only if you intend to switch the streaming engine to NDI — skip it for HEVC.
- Keep your Mac and iPad on the same network, or connect them with a USB or Ethernet cable.
On first launch, OneScreen walks you through the required checks before streaming starts:
- Screen Recording
- Accessibility
- NDI Tools (optional, and only for the NDI engine)
- Local Network
If any change still requires a relaunch, OneScreen will tell you in-app.
- Open OneScreen from the macOS menu bar.
- Select a display, or choose a virtual iPad display preset and select your target window.
- Leave the stream open (by default) or choose Private Stream by clicking the lock icon.
- Click Start.
- On the iPad, join the open stream or pair with the Mac via the private QR code or passcode.
- Begin viewing the stream, purchase and enable Capture One Controls in the settings for enhanced control over the Capture One app.
- General — open at login and Dock icon visibility
- Stream — streaming engine (HEVC or NDI), stream name, quality presets or custom size, frame rate, data rate and bit depth, color space, sharpening, auto-start and auto-switch behavior, and virtual iPad display placement, orientation, and stray-window handling
- Receivers — name presets, iPad viewer controls, Power Save, battery and connection-quality readouts, receiver alerts
- Tools — Capture One Controls and the companion actions they allow, Capture One Browser, and the Shot List switch
- Preview — floating preview window behavior and appearance
- Intermission — logo + text, title card, or solid color modes, animated GIFs, main and secondary displays, and a local Test mode
- Shortcuts — keyboard shortcuts for live controls, and the Stream Deck plugin
- Permissions — Screen Recording, Accessibility, optional NDI runtime, and Capture One status
- License — trial status and license management
- Updates / About / Help — automatic and manual update checks, version info, support contact, and diagnostics
- Latest release
- User manual
- Privacy Policy
- Optional, NDI engine only: NDI Tools download and setup guide
- Send feedback