# Useability Traditional payment systems such as credit/debit cards and mobile payments have undergone decades of refinement, and users worldwide have become accustomed to their simplicity and speed. A mere swipe of a card or a tap on a smartphone button completes the transaction almost instantly. In contrast, blockchain-powered payment services may appear complex. Users are required to grasp concepts like public and private keys and manage their digital wallets. We believe that enhancing the use of blockchain-based payments hinges on accessibility, ensuring that individuals of all technical literacy levels can easily initiate transactions. The user interfaces of existing blockchain-based wallet apps typically prove more challenging to understand than those of conventional payment apps. Additionally, functions like a Block Explorer, crucial for interacting with blockchains, often contain numerous intricate concepts that are hard for the general user to comprehend. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://upyy.gitbook.io/upyy/optimization/useability.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.