If you’re looking to buy Robux with your Google Play Card on your iPhone, there are a few things you need to know. First, make sure that the game is available on your phone. If it isn’t, you’ll need to purchase it separately. Second, be sure that the game is compatible with your phone. Third, be sure to have an account with Google Play and create one if you don’t already have one. Finally, be sure to input the correct information when prompted. Once you’ve completed all of these steps, head over to the Google Play Store and search for Robux. You’ll find the game there in a list of options. Tap on it and follow the prompts to complete the purchase process.