Coast

Coast is an app that turns your iPhone, iPad, or Apple Watch into a remote control deck for your Mac. You design the layout yourself, arranging buttons, sliders, and grids that trigger keystrokes, menu actions, shell scripts, or chained sequences. It's like building your own Stream Deck on hardware you already own, with the addition of screen mirroring, voice control, and an air mouse mode for pointing from across the room.

The core idea is reducing friction between you and your Mac when you're not sitting right in front of it. Maybe you're presenting and want a clicker that shows your slides on your phone. Maybe you're recording and want one button that arms a track, sets levels, and starts capture. Maybe you're deep in a mixing session and want a tactile grid of transport controls instead of hunting for keyboard shortcuts. Coast lets you set all that up once and reuse it whenever you need it.

Building a control surface happens visually. You place widgets on a canvas, assign actions, and group them into pages you can swipe between. Actions can be simple, a single keystroke or menu click, or compound, chaining multiple steps including conditional logic. Haptic feedback on iPhone gives each control a satisfying click, and everything syncs wirelessly so there's no cable to trip over.

Screen mirroring is built in. You can view your Mac display on your phone or tablet, which is useful when you're away from your desk or running a presentation where you want to see what the audience sees. Drawing tools let you annotate during presentations, and a presenter mode keeps slides and notes in view without distracting the crowd.

There's also voice control, letting you trigger actions by speaking, and an air mouse mode that tracks your device movement to move the cursor. Apple Watch support brings a compact control surface to your wrist, handy for quick play pause or mute toggles when your hands are full.

Coast includes AI as one of its chainable action types, though specifics aren't detailed on the site. The implication is that you can wire model calls or assistant triggers into your control sequences alongside keystrokes and scripts.

The app runs on iOS, iPadOS, watchOS, and macOS. It's available on the App Store. Pricing details aren't listed prominently, so expect a free download with in app purchases or a one time unlock, which is typical for utilities in this category. Setup involves installing the companion Mac app and pairing your devices over the local network.

Coast fits creators who work with their hands busy, musicians, video editors, presenters, and anyone who wants dedicated hardware controls without buying dedicated hardware. If you've ever wished your phone could be a custom remote for your Mac workflow, this is that idea fully built out.