TagHue is an iOS app that connects your Philips Hue smart lights to your iPhone notifications. When you receive a message, call, calendar event, or other alert, your Hue bulbs flash in a color you've chosen for that app.
Yes. TagHue communicates directly with your Philips Hue Bridge (the small white device you plug into your router). The Hue Bridge v2 or later is required. Hue lights without a Bridge are not currently supported.
Any Philips Hue color bulb connected to your Bridge is compatible. You can select specific bulbs per source or flash all your lights at once.
In TagHue, go to Settings → Hue Bridge, then tap Search for Bridges. Your Bridge must be on the same Wi-Fi network as your iPhone. Once found, press the physical button on top of your Bridge within 30 seconds and tap Connect.
Yes. TagHue is free to download on the App Store with no hidden purchases required to use the core features.
Notification Sources
TagHue currently supports 19 notification sources across five categories:
Slack uses the Slack API rather than iOS notifications. You need to provide a user token (xoxp-…) with the channels:history and im:history scopes. TagHue polls for new direct messages and mentions at a configurable interval (10–300 seconds). Generate your token at api.slack.com/apps.
TagHue reads your calendar via EventKit (Apple's calendar framework). You'll be asked to grant calendar access the first time. You can configure how many minutes before an event the flash should trigger (1 to 60 minutes).
TagHue uses Apple's CallKit framework to detect incoming calls. No additional permission is required beyond what iOS grants automatically.
Flash & Customization
Yes. Each notification source has its own color setting. You can choose from red, blue, green, yellow, purple, orange, and white. Tap a source in the app to edit its flash color.
Yes. In each source's settings you can select specific bulbs. If no bulbs are selected, all lights connected to your Bridge will flash.
Yes. Each source has a configurable repeat count (1–10 flashes). The default is 3.
Privacy & Data
No. TagHue communicates directly with your Hue Bridge over your local Wi-Fi network. No internet connection is needed to flash your lights. The Slack integration requires internet to access the Slack API.
For most sources, TagHue intercepts iOS system notifications, which means it needs to be running in the background. Make sure Background App Refresh is enabled for TagHue in iOS Settings.
TagHue does not collect personal data. Your settings (selected sources, colors, Bridge credentials) are stored locally on your device. If you enable iCloud Sync, your configuration is synced to your personal iCloud — it is never accessible to Devside SRL.
When Home-Only mode is enabled in Settings, TagHue uses your iPhone's location to determine whether you are within a radius of your home. Flashes only trigger when you are at home. Your location data is processed entirely on-device and is never sent to any server.