McDonald’s Mercury Retrograde offer: Get a FREE McChicken with a Medium Fries purchase

This May, McDonald’s has a special offer for all customers: For a limited time, download the McDonald’s app and use it to purchase a Medium Fries to obtain a free McDouble or McChicken. No coupon is needed for this promotion. Offer will be valid through May 11th, 2022. Terms and conditions may apply. See app for more details.