Details.
Get three months of Apple Arcade when you buy a new eligible iPhone, iPad, Apple TV, or Mac from Apple or an Apple authorised reseller. The offer is available for a limited time and must be claimed in the App Store within three months after first setting up the new device. You must sign in with your Apple Account, and the device must run the latest iOS, iPadOS, tvOS, or macOS. The offer is not available to current Apple Arcade subscribers, or to anyone who has previously accepted an Apple Arcade three month free offer. It cannot be combined with Apple One or other free trials or offers for Apple Arcade. Only one offer is available per Family, regardless of the number of devices purchased. After the free offer period, the subscription starts at $6.99 per month and automatically renews until cancelled. If cancelled during the free offer period, access ends immediately and the trial cannot be reactivated.
