CryptoSwift

iPad application for offline stores to accept cryptocurrency payments with a guaranteed price through the POS-like experience and deposit funds as fiat. The application guarantees the price, saving the seller from some cryptocurrency volatility.

What we've done

The application was created from scratch to support iPad and web payments, an admin panel to manage fees and settings, and hedging algorithms. The application is tightly integrated with core banking, blockchain nodes, and exchange software. We have implemented proxy wallet generation, tracking transactions in real-time and sending them with a complex fee logic. We have also added AML and KYC into the purchase process to keep the product safe and secure for the seller.

Results and value for the client

As the project's primary users are offline stores, the speed at which payments are processed and funds deposited into the bank account as soon as possible is one key. We have implemented tracking the transactions from the memory pool in addition to tracking the blocks. We have achieved an average speed of 12-14 minutes, which is pretty fast for Bitcoin or Ethereum transactions.