RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Sol - Replace your macOS command palette tool with an open source version, all the perks of advanced tools like raycast or Alfred at your finger tips
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Paletro - Enable command palette (⇧⌘P) in any application on macOS
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Hey Siri - Commands you can use on your iOS and macOS Devices