Braintree (a PayPal company) handles card processing plus PayPal, Venmo, and digital wallets in one integration. Best for platforms and subscription businesses with proven volume.
Pricing
Custom interchange-plus pricing; flat 3.49% + 49¢ for some low-volume accounts
Best for
Stripe
Developer-first payments for internet businesses
2.9% + 30¢
Square
Simple all-in-one for retail, restaurants and services
2.6% + 10¢
Helcim
Transparent interchange-plus pricing that scales down
0.40% + 25¢ over interchange