I'm looking for an improved app or service that lets me set deal alerts for price drops on a wish list of apps I keep. Bonus points for being able to add apps on iOS, either with a native app or using Workflow.
AppShopper.com has been my go-to for at least the past 3 years, if not longer. You can create a wish list and receive an email alert when there's a price reduction. The site will let you track prices for both MacOS and iOS apps.