I Tried 9 Second Monitor Apps for Android So You Don’t Have To
Attaching a second display to your computer can significantly enhance your productivity, helping you multitask efficiently and maintain an organized workspace. Whether you’re a designer needing extra screen space for creative projects or someone who enjoys watching videos while working, a dual-monitor setup can streamline your workflow.
If purchasing a dedicated monitor isn’t feasible, you can repurpose your Android tablet or phone as a second display. In this guide, we’ll explore two powerful solutions—Spacedesk and Duet Display—to achieve this, discuss common challenges with alternative apps, and provide actionable insights.
Common Issues with Second Monitor Apps
Before discovering Spacedesk and Duet Display, I tested several popular apps but encountered various limitations. Here’s a breakdown of these apps and their shortcomings:
Popular Apps and Their Limitations
| App | Limitations |
|---|---|
| Remote Desktop | Only mirrors the screen; cannot extend it. |
| Splashtop Wired XDisplay | Requires a USB cable and is free for only 10 minutes. |
| Google Remote Desktop | Only mirrors the screen; no screen extension available. |
| LetsView | Screen extension feature costs $29 per year. |
| iDisplay | No longer available on Android. |
| Air Display | No longer available on Android. |
| Super Display | Free for only three days. |
These limitations made finding a reliable app challenging, but two options stood out: Spacedesk and Duet Display.
Solution 1: Spacedesk – A Free and Efficient Option
Spacedesk is an exceptional app that transforms your Android device into a second monitor for Windows PCs—for free! It offers a robust set of features that make it a go-to choice for many users.
Key Features of Spacedesk
- Ease of Use: The app is intuitive and straightforward, even for beginners.
- High Performance: Supports 60 FPS for a smooth display experience.
- Touch Input: Allows you to use touch gestures on your Android device.
- No Sign-In Required: Start using it without creating an account.
- Multiple Displays: Extend your workspace with up to three displays.
- Secure Connection: Offers password protection and encryption.
- Free for Personal Use: Use it indefinitely at no cost for non-commercial purposes.
- Connection Flexibility: Works seamlessly over LAN, Wi-Fi, and USB.
How to Set Up Spacedesk
- Download the App: Install Spacedesk from the Google Play Store on your Android device.
- Install the Driver on Windows: Download and install the Spacedesk driver on your PC.
- Launch the App: Open Spacedesk on your Android device.
- Start the Server: Run the Spacedesk server on your Windows PC.
Connection Methods
- Wireless Connection: Ensure both devices are on the same Wi-Fi network, and tap to connect when your Android device detects the PC.
- USB Connection: Connect your PC to your Android device using a USB cable.
Adjusting Display Settings
To configure display modes, go to Settings > System > Display on your Windows PC. Choose Extend these displays for a dual-monitor setup. Spacedesk also provides in-app controls to adjust resolution, rotation, quality, and frame rate.
Solution 2: Duet Display – Perfect for Cross-Platform Users
If you need macOS support or a solution compatible with multiple operating systems, Duet Display is a strong contender. While it’s a paid app, its features justify the cost for professionals and cross-platform users.
Key Benefits of Duet Display
- Device Recognition: Displays icons for connected devices instead of relying on IP addresses.
- Automatic Resolution Adjustment: Optimizes resolution based on the device and OS.
- Universal Compatibility: Works across Windows, macOS, Android, and iOS.
- User-Friendly Interface: Offers a clean and functional design.
Drawbacks
- Cost: Subscription starts at $48 per year, with a lifetime license option available for $199.
How to Set Up Duet Display
- Download Duet Display: Install the app on your Windows or macOS computer.
- Install the Mobile App: Download Duet Display for your Android or iOS device.
- Connect Devices: Open the app to automatically detect connected devices.
Duet Display is particularly useful for professionals who need a seamless cross-platform experience, especially for enterprise use.
Important Note: Screen Burn Risks
While using your Android device as a second monitor offers flexibility, it’s essential to be aware of screen burn risks, particularly for AMOLED or OLED screens. Screen burn occurs when static images leave permanent discoloration on the display.
Tips to Prevent Screen Burn
- Use your Android device as a secondary monitor only when necessary.
- Avoid displaying static images for extended periods.
- Regularly change screen content or dim the brightness.
Frequently Asked Questions (FAQs)
1. Can I use my Android tablet as a second monitor for a Mac?
Yes, Duet Display supports turning your Android tablet into a second monitor for macOS.
2. Are there any free apps for this purpose?
Spacedesk is a free option for using an Android device as a second monitor for Windows.
3. How do I connect my Android device to my PC?
You can connect via Wi-Fi or USB, depending on the app. Spacedesk supports both methods.
4. What are the risks of using an Android device as a second monitor?
Extended use can cause screen burn, especially on AMOLED and OLED screens.
5. Is it easy to set up these apps?
Yes, both Spacedesk and Duet Display are user-friendly and require minimal setup.
Conclusion
Transforming your Android device into a second monitor is a cost-effective way to enhance your productivity. Spacedesk is an excellent free choice for Windows users, offering high performance and flexibility. For those seeking cross-platform compatibility, Duet Display is worth the investment. Regardless of the app you choose, consider screen burn risks and optimize usage to protect your device.
Start exploring these solutions today and enjoy the benefits of an extended workspace!