What is CryptoPay app?

Could you please provide me with a concise yet informative explanation of what the CryptoPay app is? I'm curious to understand its main features, functionality, and perhaps even how it differs from other cryptocurrency-related applications available on the market. Is it designed for a specific user group, or is it a versatile tool that can cater to a wide range of needs? Additionally, what are some of the benefits that users can expect to gain from utilizing the CryptoPay app?