The problem krypt solves

main problems solved by Web 3.0 blockchain applications for sending and receiving ETH is the issue of trust and security. With traditional methods of sending and receiving funds, such as through banks or payment processors, users must rely on these third parties to handle their transactions securely and without any fraudulent activity. However, with Web 3.0 blockchain applications, the decentralized nature of the network ensures that transactions are verified and recorded by a network of users, rather than a centralized authority. This provides greater security and transparency, as well as more control and autonomy for users over their own funds.

Challenges I ran into

Developing blockchain-based applications for sending and receiving ETH can present a number of challenges. These include understanding the complex and evolving nature of blockchain technology, ensuring robust security measures are in place to prevent vulnerabilities, integrating with existing systems, designing for scalability and performance, and complying with regulatory frameworks and legal requirements.
while, I think main challange i faced was writing contracts code on solidity, It was very difficult writing all the code alone and deploying it with projects as well as solviing bugs while building this app