How to Make iPad a Second Monitor

Learn how to turn your iPad into a second monitor using Sidecar on Mac or reliable third-party apps on Windows. This 1800-word guide covers setup, compatibility, troubleshooting, and practical tips for a smooth, productive dual-display workflow.

Tablet Info
Tablet Info Team
·5 min read
iPad as Second Monitor - Tablet Info
Photo by JuanMarcelFranciavia Pixabay
Quick AnswerSteps

You can turn your iPad into a second monitor by using Sidecar on macOS or trusted third‑party apps. Ensure your devices meet compatibility requirements, then connect via Bluetooth/Wi‑Fi or USB, and choose the iPad as a display in your computer’s display settings. This guide walks you through setups for Mac and Windows alike.

Understanding second-screen setup for how to make ipad a second monitor

In this guide on how to make ipad a second monitor, you’ll explore methods that turn your iPad into an extended display for a Mac or Windows PC. The approach you choose depends on your OS, hardware, and latency tolerance. According to Tablet Info, many users find Sidecar the simplest path when using a Mac, while third-party apps unlock compatibility with non-Apple systems. A second screen can boost productivity by providing extra space for reference materials, chat windows, code editors, or design work. When you set up a dedicated display, you can drag apps between your main screen and iPad, keep communications visible, and reduce tab-switching. This section explains the core concepts, what to expect from each method, and how to choose the right workflow for your needs. We’ll also cover practical examples and common scenarios so you can visualize how the arrangement will function in your day-to-day tasks.

Methods and Paths: Sidecar vs Third-Party Apps

There are two primary routes to turn iPad into a second monitor: Apple's Sidecar (for Mac users) and third-party solutions (for Windows or older Macs). Sidecar uses a wireless or wired connection to extend or mirror your desktop, giving you a true second display with system-level support. It supports drag-and-drop between devices and works with Apple Pencil for certain apps. Third-party apps, such as Duet Display or Splashtop, bring similar capabilities to Windows PCs or systems that don’t support Sidecar. These apps often require a one-time purchase or subscription and may provide additional features like responsive performance, custom resolutions, or USB-only options. Consider your hardware constraints, whether you want native integration, and whether you’ll use the setup primarily for productivity, design work, or media consumption. Both paths can achieve a solid second monitor experience with the right setup.

Compatibility and prerequisites

Before you begin, verify compatibility and prerequisites to avoid surprises. For Sidecar on Mac, ensure you have a relatively modern Mac model and an iPad that support the feature, and that both devices are on compatible operating system versions. The two devices should be able to communicate over Bluetooth and a shared Wi‑Fi network, or you can connect with a wired USB cable for a more stable link. If you’re using Windows with a third‑party app, confirm the software supports your version of Windows, macOS, or iPadOS if you’re bridging devices, and check that you have a reliable data connection. In all cases, keep your devices charged or plugged in during setup to prevent interruptions, and turn off battery-saver modes that can throttle performance.

Mac setup: Using Sidecar (example workflow)

If you’re using a Mac, Sidecar is often the simplest way to turn your iPad into a second monitor. Start by confirming your devices are near each other and that Bluetooth and Wi‑Fi are enabled. On your Mac, open System Settings (or System Preferences on older macOS) and navigate to Displays. Click the option to connect to your iPad, and choose whether you want the iPad to extend or mirror your desktop. Position the iPad in the arrangement grid to reflect its physical location on your desk. If you plan to draw or annotate on the iPad, enable Apple Pencil support in the app you’re using. Finally, drag windows onto the iPad and adjust font size and resolution for readability. If latency appears, try a wired connection or reduce the color depth to improve responsiveness.

Windows setup and alternatives (third‑party apps)

On Windows, Sidecar isn’t available, so you’ll rely on third‑party solutions. Install a trusted app such as Duet Display or Splashtop, and follow its on‑screen instructions to connect your iPad. Most apps support both wired USB and wireless connections, with the USB option often delivering lower latency. After installation, open the app and select Extend or Duplicate as your display mode, then drag windows to the iPad as you would with a standard monitor. If you run into setup prompts about drivers or permissions, grant the required access in your OS settings. A few apps can also provide additional options like custom resolutions, hotkeys, or shortcuts for quickly moving windows. Remember to keep the app updated to maintain compatibility with OS updates.

Advanced tips, performance, and troubleshooting

To maximize performance, connect via a wired USB cable when possible to reduce latency and avoid wireless interference. Use a stable home network if you’re going wireless, and keep both devices charged during use. For design and drawing work, calibrate color accuracy and enable Pencil input if supported. If you encounter lag, lower the screen resolution on the iPad or switch to a less aggressive refresh rate. If the iPad doesn’t appear in display settings, check that the devices are on the same network, Bluetooth is enabled, and that the appropriate permissions are granted to any app you’re using. When you’re done, simply retract or disconnect the iPad as you would with any external display.

Authority sources

For further reading and official guidance, consult the following sources:

  • Apple Support: https://support.apple.com/
  • Tom's Guide: https://www.tomsguide.com/
  • CNET: https://www.cnet.com/

These resources provide background on second-screen setups, compatibility, and general troubleshooting. Tablet Info references these sources to help readers validate implementation steps.

Tools & Materials

  • Mac computer (macOS 10.15+ or newer)(Ensure compatibility with Sidecar or your chosen path)
  • iPad (iPadOS 13+)(Must support Sidecar or your chosen app)
  • USB-C or Lightning cable(Use for wired connections when available)
  • Stable Wi‑Fi network(Preferred for wireless setups)
  • Third‑party app (e.g., Duet Display, Splashtop)(Needed if not using Sidecar (Windows or unsupported Macs))

Steps

Estimated time: 15-25 minutes

  1. 1

    Choose your path

    Decide whether you’ll use Apple’s Sidecar on a compatible Mac or a trusted third‑party app for Windows or non‑Sidecar setups. This choice guides the rest of the steps and influences connection options (wired vs wireless).

    Tip: If you have a recent Mac, Sidecar is typically the easiest and most stable option.
  2. 2

    Prepare your devices

    Turn on Bluetooth and Wi‑Fi on both devices, and bring the iPad within close range of the Mac or PC. If you’re using a wired connection, connect the iPad with a suitable USB cable.

    Tip: Wired connections often reduce latency and improve stability.
  3. 3

    Open the display settings

    On Mac, open System Settings > Displays and look for the option to add a display. On Windows, launch the chosen third‑party app and follow its display‑setup prompts, then open Windows Display settings to tweak arrangement.

    Tip: Set the iPad as Extended display rather than Mirror for more workspace.
  4. 4

    Configure extend vs mirror

    In the arrangement grid, set the iPad to Extend mode so you gain a separate workspace, not a duplicate of your main screen. Adjust the iPad’s position to match your desk layout.

    Tip: Align the physical and virtual positions to avoid dragging windows off screen.
  5. 5

    Arrange your workspace

    Drag windows to the iPad, resize content for readability, and assign apps you’ll frequently reference to the second screen. If you use Apple Pencil, enable stylus support for compatible apps.

    Tip: Place frequently used references on the iPad for quick glanceability.
  6. 6

    Test and troubleshoot

    Test window movement between screens and check for latency. If lag occurs, switch to a wired connection or lower the iPad’s display resolution for smoother performance.

    Tip: Restart devices or re‑pair connections if the iPad isn’t detected.
Pro Tip: Wired USB connections dramatically reduce latency compared to wireless setups.
Pro Tip: Use extended desktop mode for maximum workspace and drag‑and‑drop efficiency.
Warning: Avoid keeping both devices on battery power alone for long sessions—use a charger to prevent performance throttling.
Note: Some third‑party apps require a one‑time setup wizard; follow on‑screen prompts carefully.

Questions & Answers

Can I use an iPad as a second monitor with a PC, or is this only for Mac?

Yes, you can use an iPad as a second monitor with a PC by using trusted third‑party apps. Sidecar is specific to macOS, so Windows users will rely on alternatives like Duet Display or Splashtop. Ensure your software supports your OS version and hardware.

Yes—Windows users can use the iPad as a second monitor with third‑party apps; Sidecar works only on Mac.

Is there latency when using the iPad as a second monitor?

Latency varies by connection type. Wired USB connections typically offer the lowest latency, while wireless setups can introduce noticeable lag depending on network conditions.

Latency varies; wired connections are usually the best for smooth performance.

Do I need a USB cable or is wireless okay?

Both are possible. USB cables tend to deliver lower latency and more reliability, especially during long work sessions, but wireless is convenient if you’re moving around.

You can use either, but USB is usually best for performance.

Can I use Apple Pencil on the iPad when it’s a second monitor?

Apple Pencil can be used for drawing or annotations on supported apps when the iPad is acting as a second display, but only in apps that explicitly support Pencil input on external displays.

Pencil input depends on the app and the display mode.

Is Sidecar free, and do third‑party apps cost money?

Sidecar is included with compatible macOS and iPadOS versions. Third‑party apps may require a one‑time purchase or subscription, so consider your long‑term usage before selecting a path.

Sidecar is built in; third‑party apps may require purchase.

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Highlights

  • Choose Sidecar for Mac users to simplify setup
  • Use third‑party apps for Windows or non‑Sidecar environments
  • Wired connections minimize latency and improve reliability
  • Extend mode provides the best productivity gains
Process to use iPad as second monitor
How it works in 3 steps

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