AppMon is a free iPhone app developed by Leszek Szary in the Lifestyle category, specifically targeting shopping enthusiasts. The program allows users to create a personalized app wishlist to track and be notified of price drops. By adding desired apps to AppMon, users can benefit from discounts offered by developers, making it ideal for those willing to wait for a better deal. Integration with the App Store enables seamless addition of apps to the wishlist, while background price checks and notifications ensure users stay updated on sales. Additionally, users can compare app ratings across different countries, a valuable feature for app developers and enthusiasts alike.