I built Mac Duo because I loved the iPhone Duo fold and kept wishing my MacBook did something like it when I closed the lid.
The whole thing is driven by the Mac's actual lid-angle sensor, so the glass effect moves at the exact speed of your hand rather than playing a fixed animation. Close slowly and it holds halfway. Reverse and it unfolds exactly as it closed.
It's £2.99, one-time, no subscription, no account. Would love any feedback, especially on feel and timing, happy to tweak based on what people say.
About Mac Duo on Product Hunt
“Turn your display into frosted glass as you close the lid”
Mac Duo launched on Product Hunt on September 15th, 2026 and earned 103 upvotes and 10 comments, placing #13 on the daily leaderboard. A macOS app that turns your display into frosted glass as you close the lid. Driven by the hinge sensor, so it moves at the speed of your hand.
On the analytics side, Mac Duo competes within Mac, User Experience and Menu Bar Apps — topics that collectively have 484.3k followers on Product Hunt. The dashboard above tracks how Mac Duo performed against the three products that launched closest to it on the same day.
Who hunted Mac Duo?
Mac Duo was hunted by Hari Gohel. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Hari Gohel
Hey Product Hunt 🙌🏻
I built Mac Duo because I loved the iPhone Duo fold and kept wishing my MacBook did something like it when I closed the lid.
The whole thing is driven by the Mac's actual lid-angle sensor, so the glass effect moves at the exact speed of your hand rather than playing a fixed animation. Close slowly and it holds halfway. Reverse and it unfolds exactly as it closed.
It's £2.99, one-time, no subscription, no account. Would love any feedback, especially on feel and timing, happy to tweak based on what people say.