Proving Ground Cafe vs Pie Hard Pizzeria Usage & Stats
Mobile ordering just got easier. With the Proving Ground Coffee app, you can now mobile order ahead and skip the line. Use the app to mobile order, view previous orders and favorites, and much more.
- Apple App Store
- Free
- Food & Drink
Store Rank
- -
With our app you can:
- Browse through the menu & order
- Receive updates and promotions
- Receive exclusive discounts and coupons
- Re-order your favorite items
- Apple App Store
- Free
- Food & Drink
Store Rank
- -
Proving Ground Cafe VS. 
Pie Hard PizzeriaJanuary 18, 2026