The website shows you every deal — but the app is how you hear about them while they're still live. Most deals sell out within hours, and the hottest ones can be gone in minutes. Deal alerts on your phone are the difference between catching one and reading about it later.
Live on Google Play. Install it, allow notifications, and you're set.
The iOS app is in beta through Apple's TestFlight. Tap below, install TestFlight if prompted, and you'll get the app — full App Store release coming soon.