Luna Display

Hardware that turns the iPad into a wireless second display

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Hardware that turns the iPad into a wireless second display

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Productivity

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Remote workforce tools

Luna Display is a hardware solution that turns any iPad into a true, wireless second display for your Mac. Luna was designed and developed ex-Apple engineers and the makers of Astropad, award-winning drawing software that turns the iPad into a professional graphics tablet for Mac.

The Best Luna Display Alternatives

The best Luna Display alternatives are Duet Display, PhoneCast, Replica, Airdroid 3, and PocketCorder.

Duet Display

5.0 ·

Choose Duet Display if...

✓you need a software-only second display
✓you want Mac and PC support
✓you need reliability beyond Sidecar

See details ↓

PhoneCast

Choose PhoneCast if...

✓you need iPhone or iPad mirroring to Mac
✓you present or record mobile demos often
✓you want a wireless setup without cables

See details ↓

Replica

Choose Replica if...

✓you need iPhone screen sharing to any browser
✓you cast to smart TVs and streaming sticks
✓you work in mixed-device meeting rooms

See details ↓

Airdroid 3

Choose Airdroid 3 if...

✓you want phone control plus file transfer
✓you need notifications and device management tools
✓you need an AirPlay receiver on your computer

See details ↓

PocketCorder

Choose PocketCorder if...

✓you need remote Mac control from your phone
✓you want access from anywhere without VPN
✓you manage servers and scripts on the go

See details ↓

What to Consider

Luna Display is well-known for turning an iPad (or another Mac) into a responsive second screen for your Mac via a dedicated hardware dongle—great for people who want a “real” extended desktop rather than simple mirroring. The alternatives span a wider set of jobs-to-be-done: Duet Display leans into a software-first, “pro workflow” second-display setup, while tools like PhoneCast focus on the opposite direction (getting an iPhone/iPad screen onto a Mac), and options like Replica and AirDroid emphasize cross-platform casting and device-management features beyond the second-monitor use case. PocketCorder sits even further afield as remote Mac control from a phone, aimed more at access than additional screen real estate.

In evaluating these options, the key considerations were the direction of display sharing (extend vs mirror vs remote control), platform coverage (Apple-only vs cross-platform), connection model (wired vs wireless), performance signals like latency and reliability, setup friction, and how well each product fits common scenarios like daily desk setups, presenting/teaching, or lightweight remote access.

Duet Display

Ex-Apple engineers transform your iPad into a cinema display

5.0 · 1 review

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Duet Display takes a software-first approach to turning an iPad into an extra monitor, which can be appealing if you’d rather avoid a hardware dongle and keep setup lightweight. It’s positioned as a more “professional” alternative to built-in options like Sidecar, emphasizing day-to-day usability for people who rely on a second screen for real work.

A major differentiator versus Luna Display is broader platform flexibility: Duet is commonly used across Mac and PC environments, which helps if your setup isn’t Apple-only. It also fits teams or individuals who move between machines and want one solution that can follow them.

Duet Display is frequently chosen when stability is the priority, especially for users who’ve found native or Wi‑Fi-dependent approaches inconsistent. Overall, it’s a strong pick when the goal is a dependable iPad-as-monitor workflow with a more universal footprint than Luna Display.

Best for

Best for professionals who want a reliable iPad second display across Mac and PC setups.

Standout features

✓Software-based iPad second display
✓Cross-platform Mac and PC support
✓Pro workflow focus and customization
✓Reliability-first extended display experience

PhoneCast

Mirror iPhone or iPad screen to Mac without wires

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PhoneCast is designed for the opposite direction of what Luna Display excels at: it gets your iPhone or iPad screen onto your Mac wirelessly. That makes it a better fit when the goal is demos, walkthroughs, recordings, or live presentations where the audience needs to see the mobile screen clearly on a computer.

Unlike a true second-monitor tool, PhoneCast centers on fast, cable-free mirroring rather than extending your Mac desktop. This focus can simplify the experience for meetings and content creation, where a clean mirror is more valuable than window management or desktop expansion.

If your primary “second screen” pain is actually sharing mobile UI, showing app behavior, or capturing a device screen for tutorials, PhoneCast is the more direct solution. It’s a practical alternative to Luna Display when mirroring is the job-to-be-done, not adding workspace.

Best for

Ideal for presenters, teachers, and creators who need iPhone/iPad mirroring on a Mac.

Standout features

✓Wireless iPhone and iPad mirroring to Mac
✓Built for demos, teaching, and recording
✓Simple setup for quick screen sharing
✓Universal-style use across Apple devices

Replica

Mirror your iOS screen on a modern web browser

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Replica stands out by making the receiver a web browser, so an iPhone screen can be shared to many kinds of devices without a dedicated native desktop setup. That’s a different value proposition than Luna Display: it’s optimized for flexible casting and mirroring rather than turning an iPad into a Mac’s extended desktop.

For environments with mixed hardware, Replica is compelling because it can target common browsers and a wide range of screens in homes, offices, and conference rooms. It also extends beyond computers to popular streaming devices and smart TVs, which is useful when the “display” is a big screen, not a tablet on a desk.

Choose Replica when compatibility and reach matter more than cursor-level interaction and desktop extension. It’s the better alternative to Luna Display for quick, cross-platform iOS screen sharing across varied targets.

Best for

Best for teams and individuals who need iPhone casting to mixed devices and displays.

Standout features

✓Browser-based receiver for easy mirroring
✓Cross-platform viewing with common browsers
✓Casting to smart TVs and streaming devices
✓Designed for fast iOS screen sharing

Airdroid 3

Fully access your phone from a PC or Mac

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AirDroid is less about adding a second monitor and more about managing and interacting with phones across devices. Compared with Luna Display’s focus on extending a Mac desktop, AirDroid bundles capabilities like device control, file transfer, and notification handling for a broader “multi-device productivity” workflow.

One standout angle is using a Mac or Windows PC as a receiver for casting, which is valuable for demonstrations, support, or lightweight collaboration. Because it’s designed for cross-platform environments, it can fit workplaces where Android and iOS devices coexist with Windows-heavy desktops.

If the real need is moving files, responding to notifications, or controlling a mobile device from a computer, AirDroid is the more complete toolkit. It’s a strong alternative to Luna Display when the goal is phone-centric management rather than expanding macOS onto an iPad.

Best for

Ideal for users who want cross-platform phone control, casting, and file management.

Standout features

✓Device control from desktop
✓File transfer between phone and computer
✓Notification sync and management
✓Computer as an AirPlay-style receiver

PocketCorder

Remote control your mac from smartphone

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PocketCorder is built for remote Mac control from a phone, making it a different kind of “work from anywhere” alternative to Luna Display. Instead of extending your desktop to an iPad locally, it focuses on accessing and operating your Mac when you’re away from your desk.

Its remote-first orientation is especially useful for quick interventions: checking a process, restarting a task, monitoring a long-running job, or interacting with a specific app without carrying a laptop. By leaning on modern tunneling approaches, it aims to reduce the friction of getting connected compared to traditional VPN-heavy setups.

For developers, operators, and power users, PocketCorder can be the better fit when the priority is reach and control rather than more pixels. It’s the alternative to Luna Display when “second screen” is less important than reliable remote access.