Observed arrival · 2026-11-12
Alterscreen gives screen sharing a backstage
A Mac utility creates a separate screen for calls, where you choose which apps to show while keeping the rest of your desktop out of view.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Mac users presenting in video calls
- Worth noticing
- It supports screen shapes from 720p to 4K, including portrait, square and 4:3 formats.
Field notes
The workflow starts by allowing specific apps, then moves their windows into a separate Alterscreen window, which the user selects in the meeting app's sharing menu. The page says each session starts blank and that windows from other apps are moved off the screen; it also describes a warning card on the hidden screen to help prevent sharing the wrong one. Resolution and aspect ratio can be changed while presenting.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue