We recommend LibHunt Solidity for discovery and comparisons of trending Solidity projects.
Solidity might be a bit more popular than PaymentSpring. We know about 1 link to it since March 2021 and only 1 link to PaymentSpring. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Their name was similar to a legit processing company (paymentspring.com) , and I tried to contact the legit company, thinking maybe I could leverage their legal team. I made a few attempts, emails, phone calls, it didn't seem like it stuck. People weren't sure where to direct my request. That company has recently changed the name of their processing service, so that tactic is probably out the window now. I can't... Source: over 1 year ago
Solidity Docs - Should really be your first stop in your Solidity journey, straight from the horses mouth with plenty of examples including a hello world smart contract. Lots of references to Ethereum but as mentioned earlier, anything that is applicable to ETH is applicable to Harmony. Source: about 3 years ago
PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
Ethereum - Ethereum is a decentralized platform for applications that run exactly as programmed without any chance of fraud, censorship or third-party interference.
Payoneer - Whether making international payments, receiving funds, managing your digital business, or accessing capital, Payoneer opens your business up to the world.
Hyperledger Fabric - Hyperledger Fabric is a blockchain framework implementation and one of the Hyperledger projects...
Taler - We provide a payment system that makes privacy-friendly online transactions fast and easy.
Kekker - Build decentralized apps without any prior blockchain expertise