Use Custom Voice Phrases for Siri Shortcuts in iOS 12

Apple introduced the ability to trigger Siri Shortcuts using custom voice phrases with the release of iOS 12. This feature allows users to record a personalized voice command that instantly runs a single action or a complex multi-step workflow created within the Shortcuts app or suggested by third-party applications.

How Custom Voice Phrases Work in iOS 12

When iOS 12 launched, Siri Shortcuts replaced the standalone Workflow app. Unlike modern iOS versions where shortcuts automatically use their written title as the voice trigger, iOS 12 required users to explicitly record a personal voice phrase to link a shortcut to Siri. When you spoke that exact phrase, Siri executed the corresponding action without opening the full application.

Setting Up a Custom Voice Phrase

You can assign a custom voice phrase to a shortcut in iOS 12 using two primary methods: through the Shortcuts app or via the device Settings.

Method 1: Through the Shortcuts App

  1. Open the Shortcuts app on your device running iOS 12.
  2. Locate the shortcut you want to assign a phrase to and tap the three dots (...) icon to edit it.
  3. Tap the Settings icon (the two toggles) in the upper-right corner.
  4. Tap Add to Siri (or Siri Phrase).
  5. Tap the red Record button and speak your desired custom phrase clearly.
  6. Tap Done to save the voice trigger.

Method 2: Through the iOS Settings

  1. Open the Settings app on your iPhone or iPad.
  2. Scroll down and tap Siri & Search.
  3. Under the Suggested Shortcuts section, tap All Shortcuts to view available actions from installed apps.
  4. Tap the plus (+) icon next to any action you want to automate.
  5. Tap the Record button, speak your custom phrase, and confirm by tapping Done.

Best Practices for Voice Triggers

For optimal recognition in iOS 12, choose distinct phrases that do not overlap with default system commands like "Set an alarm" or "Send a message." Short, unique phrases such as "Heading home," "Log water," or "Podcast time" work reliably and allow Siri to process and execute your shortcuts quickly.