Reads the hinge
Uses the lid-angle reading exposed by a supported MacBook and responds as it changes.
Get the fluid fold iPhone Duo animation for your Macbook. Your desktop tilts, blurs and settles as it comes down.
The effect
The windows, wallpaper and cursor you already see move together. No scene changes, no separate overlay to manage.
ScreenCaptureKit + MetalUses the lid-angle reading exposed by a supported MacBook and responds as it changes.
ScreenCaptureKit supplies the frames; Metal keeps windows and wallpaper moving as one surface.
Perspective, blur and luminance change progressively instead of switching on all at once.
Pause or adjust the effect from the menu bar without leaving another app window open.
Fold Lab · Scroll to preview
The bottom edge stays anchored while perspective, softness and light change together.
That’s the fold.
Before you download
MacFold stays focused: one display, one sensor and one local effect.
Read the installation guideRequirements
Sensor support varies between MacBook models. Intel Macs and Windows PCs are not supported.
Private by design
One permission, explained
MacFold needs a live view of your desktop to create the folding effect. Those frames stay in memory only long enough to be transformed and displayed locally.
Capture stops when the effect is paused, the built-in display becomes unavailable or the app is closed.
Your download becomes available through Polar immediately after checkout.
Open the DMG and drag Lid Plane into your Applications folder.
Open the app, click its lid-angle reading in the menu bar and allow Screen Recording when macOS asks.
Need first-launch help? Open the detailed guide →
Questions
Straight answers about compatibility, permissions and getting the app running.
MacFold requires macOS 13 or later, Apple silicon and access to the MacBook’s lid-angle sensor. Sensor availability varies between models, so Apple silicon alone does not guarantee compatibility. Intel Macs and Windows PCs are not supported.
The effect works by creating a live, in-memory view of your built-in display and transforming it locally as the lid moves.
MacFold’s downloaded app currently appears as Lid Plane. It runs from the menu bar rather than opening a normal app window or appearing permanently in the Dock.
This experimental build is not notarized by Apple. First try opening it normally. If macOS says the developer cannot be verified, open System Settings → Privacy & Security and choose Open Anyway. Never disable Gatekeeper. If macOS specifically reports malware or says the app will damage your computer, stop and contact support.
Polar completes the purchase and sends download access to the email entered at checkout. If the confirmation or download does not arrive, email support.grabkit@gmail.com.
No. It is a one-time purchase.
Desktop frames are processed locally in memory for the live effect.
Yes. Quit the app from the menu bar and move it from Applications to the Trash. You can also remove its Screen Recording permission in System Settings.
MacFold for macOS
Download the DMG and enjoy the iPhone Duo animation on your MacBook.
$4.99 once · Immediate download · No subscription
Purchase or download issue? Email support