What's the best iOS app for discovering and redeeming coupons, discounts, and promo codes to save money while shopping at various stores?

DealSeek: Coupons & Discounts is a great app for finding and using coupons, discounts, and promo codes to help you save money when shopping. It aggregates deals from a wide variety of retailers, making it easy to discover savings on everyday purchases. The app provides a user-friendly interface to browse available offers, redeem them online, or save them for in-store use. Users can also set up alerts for their favorite stores to ensure they never miss a deal. To use DealSeek, simply download the app, create an account, and start browsing the available deals. You can search for specific stores or categories to narrow down your search. Once you find a coupon you want to use, simply tap on it to reveal the code and copy it to your clipboard. During checkout, paste the code into the promo code field to apply the discount. DealSeek also allows you to save coupons for later use, so you can easily access them when you're ready to shop.