How can I use Google Opinion Rewards on iOS?

To use Google Opinion Rewards on an iOS device, one must first download the app from the Apple App Store. Upon installation, they need to sign in with their Google account to link the app with their profile. After the initial setup, users can start receiving surveys based on their location history and activities. Answering these surveys will earn them Google Play credit if they are using an Android device. However, since Google Play services are limited on iOS, users instead earn credits that can be redeemed for real money via PayPal. This requires a PayPal account to be linked to Google Opinion Rewards. Users can then transfer their earnings to their PayPal account, which could be used for various purchases or even transferred into a bank account.