The Best Food Delivery App

Conclusion
The best (cheapest / widely available) option, hands-down, is Uber Eats, thanks to this: Complimentary Uber Benefits | Capital One
How much to tip: Aim for the maximum of $3 and 15%. AKA the middle option in most food delivery apps. Tip amount impacts how likely drivers are to accept your order.
Research
Food Delivery Comparison | MoneyUnder30
How Much to Tip For Food Delivery: An Ultimate Guide | Glamour
SavorOne Rewards Credit Card | Cash Back on Dining & Grocery Stores | Capital One
Using college delivery address with a preordered Sunday 1 PM delivery at Shake Shack (1 Chicken Shack, 1 Hand-spun Shake + malted), here are the added costs (on top of $18.16 food/tax):
- Grubhub
- Basic: $5.53 = $3.49 delivery + $2.04 service
- Pro: $2.04 = $2.04 service
- Uber Eats
- Basic: $5.26 = $2.49 delivery + $2.87 service
- Pro: $0.92 = $2.87 service - $1.95 discount (11.5% off)
- Postmates (merged with Uber but still different-ish)
- Basic: $4.90 = $2.40 delivery + $2.50 service
- Pro: $1.65 = $2.87 service - $0.85 discount (5% off)
- Doordash
- Basic: $3.99 = $0.99 delivery + $3.00 service
- Pro: $1.50 = $1.50 services