Turn any Mac you already own — even an old iMac — into a true extended second display for your Mac. No dongle, no subscription, no account, no cloud.
Cost / License
- Freemium
- Proprietary
Platforms
- Mac




Tab Display is described as 'Cross-platform second-screen and remote video player for Mac/Windows: use Android tablets, iPhones, and iPads for extended displays, supported window mirroring, screen sharing, and multi-monitor workflows over Wi-Fi or supported wired connections' and is a screen mirroring app in the office & productivity category. There are more than 10 alternatives to Tab Display for a variety of platforms, including Mac, Windows, iPad, Android and iPhone apps. The best Tab Display alternative is Spacedesk, which is free. Other great apps like Tab Display are Side Screen, Deskreen, Duet Display and Screen Stream over HTTP.
Turn any Mac you already own — even an old iMac — into a true extended second display for your Mac. No dongle, no subscription, no account, no cloud.




BetterCast lets you use your old device (Mac, Android, iPhone) as real extended displays with zero subscriptions, zero cloud, and native macOS performance.



MirrorHall creates virtual second monitors over the network using UDP video streaming among Linux desktop or mobile devices. It is optimized for low latency, and is based on gstreamer and GNOME's mutter screen sharing APIs.

