Launched this week

Spantop
Turn any Mac/Android Tablet into a real extended monitor
88 followers
Turn any Mac/Android Tablet into a real extended monitor
88 followers
Hey 👋 Spantop turns any spare Mac or Android tablet into a wired/wireless extended for your Mac. Use a second Mac or Android tablet as a HiDPI monitor over Wi-Fi, Thunderbolt, or USB-C. Powered by LZ4 for near-zero-latency streaming, with your screen staying local. Sidecar only works with iPads. Spantop works with Macs and Android tablets too. Free forever. Feedback welcome!







Spantop
Hey Product Hunt 👋
I built Spantop because I often wanted a second monitor without carrying one around.
Spantop lets you turn another computer or device into a real second monitor for your Mac over Thunderbolt or WiFi. It is made for people who travel, work from cafés, use multiple screens, or just want more space without buying extra hardware.
The goal was simple: open the app, connect another screen, and extend your Mac workspace.
App Link: Spantop Android
Mac App Store Link: App Store
How to use Spantop on Mac Demo Link: Demo
Would love your feedback — especially from Mac users who use multi-monitor setups, travel often, or work across multiple devices.
Relay
nice! does it work with windows? I mainly use mac for work, but still sometimes switch to windows for creative work, and connecting mac as a second monitor was always difficult with third party software.
Spantop
@alimkhan_y We are on the way to release our windows version too, Glad to see your interest into it.
Spantop
@petersamokhin We have it for free forever.
Spantop
@prafull_sharma2 You can use another Mac, Android Tablet only, Window, Ipad will be coming in future.
Spantop
Hey Product Hunt 👋
Quick update from Spantop — since the launch 2 days ago, we’ve also released the Android receiver app.
So now Spantop is not just for using another Mac as an extended display.
App Link: Spantop Android
Mac App Store Link: App Store
How to use Spantop on Mac Demo Link: Demo
You can also turn an Android tablet into a real second screen for your Mac — over WiFi, USB(coming soon).
If you have an old Android tablet lying around, this is exactly the use case we built it for: open Spantop, connect, and get extra screen space without buying another monitor.
Would love feedback from anyone who uses Android tablets, travels with a Mac, or wants a lightweight second-screen setup.