1 Trade-in values will vary based on the condition, year, and configuration of your trade-in device. You must be at least 18 years old to be eligible to trade in for credit. Not all devices are eligible for credit. Restrictions and limitations may apply. Credits are based on the received device matching the description you provided when your estimate was made. Simply Mac reserves the right to refuse or limit the quantity of any device for any reason. In store: Offer only available on presentation of a valid, government-issued photo ID (local law may require saving this information). Value of your current device must be applied toward purchase of a new Apple device. Offer may not be available in all stores. Some stores may have additional requirements.