PayPal is extremely transparent with its terms and pricing, and it doesn’t lock you into a contract with an early termination fee. The number of integrations offered is unreal, so you can be certain that PayPal will sync with your shopping cart , accounting application, or shipping software. PayPal even offers an mPOS app ( PayPal Here) for mobile merchants ( you can check out our full review of that here ) . The company also owns Braintree Payments, but the user experience is very different if you sign up with Braintree.