Payment.Ninja offers Free Trial, but Square Payments does not.
Payment.Ninja is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Square Payments is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Payment.Ninja begins at $29/Month, while pricing details for Square Payments are unavailable.
Some top alternatives to Payment.Ninja includes PayPal Here, Braintree Direct, MagicPay, PayAnywhere, Invoice Ninja, Paymill, Cardknox, SwipeSimple and ScanPay.
Some top alternatives to Square Payments includes Stripe Payments, WePay, Braintree Direct, QuickBooks Payments, MagicPay, Merchant One, Quantum Electronic Payments, Clover, Square Invoices and PaySimple.