PayPal is described as 'A secure online payment solution offering buyer and seller protection, no fees for sending, and seamless integration with banks in 200+ countries' and is a very popular payment processing service in the business & commerce category. There are more than 100 alternatives to PayPal for a variety of platforms, including Web-based, iPhone, Android, iPad and SaaS apps. The best PayPal alternative is Wise. It's not free, so if you're looking for a free alternative, you could try Open Collective or GNU Taler. Other great apps like PayPal are Stripe, MiniPay Wallet, Skrill and Strike.me.