A Steam Wishlist can connect to third-party deal trackers to show price cuts across multiple storefronts, not just Steam. Is There Any Deal tracks sales on Steam, EA Store, Epic Games Store, GamersGate, GOG, GreenManGaming, and Humble. The site alerts users when games on their imported Wishlist drop in price anywhere.
One user saved his nephew over £40 by finding Total War: Warhammer 3 discounted to £7.49 on the Humble Store after the nephew bought it full price on Steam for £50. Steam allows refunds, so the nephew was able to repurchase at the lower price. The same user spotted Genesis Noir, Ancient Enemy, and Norco available for £10 total through deals on other platforms, each with more than 70% discounts compared to Steam pricing.