How to ok google on iphone

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Last updated: April 4, 2026

Quick Answer: To use "Ok Google" on an iPhone, you need to download and install the Google Assistant app from the App Store. Once installed, open the app, sign in with your Google account, and grant the necessary permissions. You can then activate Google Assistant by saying "Ok Google" or by tapping the microphone icon within the app.

Key Facts

Google Assistant is available as a free app on the iOS App Store.
You must grant microphone access for the "Ok Google" hotword detection to function.
Signing in with a Google account is required to use most features.
Google Assistant on iOS offers many of the same features as on Android, including voice search, smart home control, and setting reminders.
The "Ok Google" hotword detection may consume more battery than manual activation.

Overview

While iPhones are primarily designed to work with Apple's Siri, it's possible to use Google Assistant, including its "Ok Google" hotword feature, on an iOS device. This allows you to leverage Google's powerful search capabilities, access your Google services, and control smart home devices using voice commands, even on an Apple smartphone. The process involves downloading the dedicated Google Assistant app and configuring its settings.

How to Set Up "Ok Google" on Your iPhone

Getting "Ok Google" to work on your iPhone is a straightforward process that requires the Google Assistant app. Here’s a step-by-step guide:

Download the Google Assistant App: The first step is to visit the Apple App Store on your iPhone. Search for "Google Assistant" and download the official app developed by Google LLC. It's a free application.
Install and Open the App: Once the download is complete, tap on the app icon to open it.
Sign In with Your Google Account: You will be prompted to sign in with your Google account. This is essential for the app to access your personal data (like contacts, calendar, etc.) and sync your preferences. If you don't have a Google account, you'll need to create one.
Grant Permissions: For the "Ok Google" hotword detection to function, the app needs permission to access your iPhone's microphone. You will likely see a pop-up asking for microphone access. Tap "Allow" or "OK". You may also need to grant access to location services, contacts, and other features depending on what you want Google Assistant to do.
Enable "Hey Google"/"Ok Google" Detection: Inside the Google Assistant app, navigate to the settings. Look for an option related to "Voice Match" or "Hey Google & Voice Match." Tap on this setting and follow the on-screen instructions to train the app to recognize your voice. This usually involves saying "Ok Google" or "Hey Google" a few times so the app can learn your voice pattern.
Adjust Settings for Background Activation: By default, "Ok Google" hotword detection might only work when the Google Assistant app is open. To enable it to work even when the app is in the background or the screen is off (similar to how it works on Android), you might need to adjust specific settings within the Google Assistant app and potentially in your iPhone's general settings regarding background app refresh and battery optimization. However, iOS has stricter background process limitations than Android, so "Ok Google" hotword detection might be less responsive or consistent when the app isn't actively open.

Using Google Assistant on Your iPhone

Once set up, you can activate Google Assistant in a couple of ways:

Voice Command: Simply say "Ok Google" or "Hey Google" (depending on which you enabled) when the app is running or if you've configured background activation.
Tap to Speak: Open the Google Assistant app and tap the microphone icon at the bottom of the screen.

You can then ask questions, set reminders, control smart home devices linked to your Google account, get directions, play music, and much more. The functionality is largely the same as on an Android device, with the main difference being the integration level within the operating system.

Limitations and Considerations

It's important to be aware of some limitations when using Google Assistant on an iPhone:

Background Activity: iOS is more restrictive than Android regarding background app processes. This means that "Ok Google" hotword detection might not always work reliably when the app is not actively open or when your iPhone is in low power mode. You might find that tapping the microphone icon is a more consistent way to access the assistant.
Battery Consumption: Continuous listening for the "Ok Google" hotword can consume more battery power compared to using Siri or activating Google Assistant manually.
System Integration: Google Assistant cannot replace Siri as the default system assistant. You cannot, for example, say "Ok Google" to initiate a phone call directly from the lock screen without unlocking your phone and opening the app, unlike how Siri can be invoked system-wide.
App Focus: The primary way to interact with Google Assistant is through its dedicated app. It doesn't have the deep system-level integration that Siri enjoys on iOS.

Despite these limitations, downloading the Google Assistant app is the best way to access Google's voice assistant and its "Ok Google" functionality on an iPhone, offering a powerful alternative or supplement to Siri.