What's the best iOS app for finding out if the local Dairy Queen has my favorite Blizzard flavor before I drive all the way over there?

Okay, so I'm all about efficiency, right? Nothing's worse than craving a Peanut Butter Cup Blizzard and then finding out the local DQ is out. The Dairy Queen app totally solves this. It's got location services, so it pinpoints the closest store, and then—get this—it usually shows what's available. From a technical standpoint, the store-specific menus are updated pretty frequently. Plus, the dev team really thought about push notifications; I get alerts about new flavors and deals. The UI is slick, too; loads in about 2 seconds on my iPhone 13. I've checked under the hood, and it barely uses 60MB of RAM when it's running. No more driving across town for nothing – huge win!