Signals
Signals is a Mac app for HomeKit households that uses smart lights and automations to communicate, signal events, and trigger shortcuts.
What is Signals?
Signals for HomeKit is a Mac app that helps people use HomeKit lights as visual alerts for communication and automation around the home. It lets you create reusable light-based signals such as flashes, pulses, color changes, and temporary holds so family members can notice events without shouting across rooms. On Mac, the app also supports HomeKit-driven automations that can trigger signals or run Shortcuts from events like motion, contact sensors, buttons, locks, battery levels, temperature, humidity, and security system changes. This makes it useful for family routines, home office status cues, reminders, and smart home workflows that connect lights with other Apple automation tools. Signals is designed for users who already have HomeKit-compatible accessories and want a more expressive way to coordinate activity at home. The app is published by CoreBits LLC.
Key features
- Create visual alerts with flash, pulse, hold, and color-based lighting effects
- Use HomeKit-compatible lights, switches, and plugs for household communication
- Trigger signals from HomeKit events such as motion, contact, lock, and security changes
- Run Shortcuts from supported smart home events on Mac
- Set custom finishing states so lights can return to normal or stay in a chosen color
- Build home office cues, reminders, and family routine automations with smart accessories
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Safety overview
Status: Mostly safe
Signals uses HomeKit accessories and automation features, so access to your Home data is normal for its purpose. On Mac, some automation use cases work best when the app stays running and the computer remains awake, which can increase background activity and energy use compared with a typical app. If you use it for home-office or household routines, review which automations you enable so lights and shortcuts run only when you expect them to.
Recommendation: Keep Signals if you actively use HomeKit lights, sensor-based automations, or Shortcut workflows on your Mac. If you no longer use it, you can remove it like other apps, but any signals or automations you set up through it may stop working until you recreate them elsewhere.
Common paths
/Applications/Signals for HomeKit.app
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