Sill streams any Mac window or desktop to iPhone or iPad, letting you interact via touch, trackpad, keyboard, or Apple Pencil. Sill for Mac captures the window, encodes it as HEVC video, and sends it to the Sill app on your device. Input flows back as mouse and keyboard events. Connection options include the same network, USB cable, Direct Wireless Connection, or your own VPN like Tailscale for remote access. No account or server is involved.
Sill for Mac is a free, notarized download from getsill.app, also installable via Homebrew. The iOS/iPadOS version is free on the App Store and can be built from source. Requirements include an Apple silicon Mac running macOS 14+ and an iPhone or iPad with iOS/iPadOS 17+.
Sill uses Screen Capture Kit and Video Toolbox for encoding, with encrypted TLS 1.3 transport. It drops frames instead of queuing when behind, keeping the picture current. Clipboard syncs both ways with Share Clipboard enabled, and Apple Pencil input works as a pointer. On iPhone Duo, Sill adapts to the hinge position.
Source: Hacker News · Summarized by HeadlinesBriefing