sill

# Sill

Any window from your Mac, on your iPhone and iPad.

Sill shows a window from your Mac, or the whole desktop, on your iPhone or
iPad. You use it there with touch, a trackpad, a 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. Your taps, clicks, scrolls and keys go back to your
Mac. Your Mac and your device connect on the same network, over a USB cable,
with Direct Wireless Connection when they share no network, or through your
own VPN, such as Tailscale, with Remote Access. There is no account and no
server in between.

**[getsill.app](https://getsill.app)** ·
[Download for Mac](https://getsill.app/download) ·
[Support](https://getsill.app/support) ·
[Privacy](https://getsill.app/privacy) ·
[Terms](https://getsill.app/terms)

[![CI](https://github.com/Saffsanity/sill/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/Saffsanity/sill/actions/workflows/ci.yml)

[![Download on the App Store](https://tools.applemediaservices.com/api/badges/download-on-the-app-store/black/en-us?size=250x83)](https://apps.apple.com/app/id6816359860)

Sill for Mac is a free, notarized download from
[getsill.app](https://getsill.app/download); with [Homebrew](https://brew.sh),
`brew install --cask saffsanity/sill/sill` installs the same download from
Sill's own [tap](https://github.com/Saffsanity/homebrew-sill). Sill for iPhone
and iPad is free on the [App Store](https://apps.apple.com/app/id6816359860),
and you can also build it from source (below).

To try the next version before it ships: Sill for iPhone and iPad has a
[public beta on TestFlight](https://testflight.apple.com/join/6v7nqyn3), and Sill for Mac
has [nightly builds](https://github.com/Saffsanity/sill/releases/tag/nightly) on
GitHub, notarized like a release but not supported. Your devices stay paired
(a nightly uses the release's identity), and Sill's update check never offers
a nightly: the release above is the one to use.

## Screenshots

These are the iPad screenshots from the App Store; on iPhone and iPhone Duo,
Sill has layouts of its own.

| [!["Your Mac, on your iPad." The Mac's Weather app on an iPad held sideways, under Sill's bar of window thumbnails and buttons.](design/screenshots/ipad-1.jpg)](design/screenshots/ipad-1.jpg) | [!["Laptop mode." An iPad held upright, with the Mac's Clock app on top and Sill's bar, a row of keys and a trackpad below it.](design/screenshots/ipad-2.jpg)](design/screenshots/ipad-2.jpg) | [!["Sharp and smooth." Sill's Settings panel on an iPad held upright, with the Mac's Quality, Resolution and Frame Rate settings.](design/screenshots/ipad-3.jpg)](design/screenshots/ipad-3.jpg) |
| :---: | :---: | :---: |
| [!["Pair once. Private always." Sill's Connect to a Mac screen on an iPad, with a Mac listed as Wired and Add a Mac below it.](design/screenshots/ipad-4.jpg)](design/screenshots/ipad-4.jpg) | [!["Launch any Mac app." Sill's Apps list on an iPad held sideways, w