Neither Airpay nor Checkout.com offers a free trial.
Airpay is designed for Large Enterprises and Medium Business.
Checkout.com is designed for Medium Business and Small Business.
Pricing details for both Airpay and Checkout.com are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to Airpay includes PayU, Instamojo, Paytm Payment Gateway, India Online Pay, MultiSafepay, UniPay Gateway, NextPay Payment Gateway, Better Payment and aPay Payment Gateway Systems.
Some top alternatives to Checkout.com includes Stripe Payments, WePay, Global Payments, PaySpace, 2Checkout, Stripe Connect, Paymill, Adyen and PayPro Global.