Swift Senior is a GPT designed to assist with iOS development queries. Its primary function is to provide brief, concise answers to complex Swift programming questions. Notably, it does not yield code snippets, instead focusing on guiding the user to the correct understanding and implementation through well-structured responses and tailored advice. Its offerings draw on the knowledge of a senior Swift developer, with answers reflecting a high level of expertise in the Swift programming language and the general field of iOS application development. The tool covers an extensive range of topics within Swift development, from specific technical aspects such as the main thread operations and URLSession usage, to broader topics like performance optimization for apps. This GPT, as with others, is hosted on the ChatGPT platform, pointing towards a requirement for ChatGPT Plus in order to access it. Swift Senior is a valuable resource for Swift developers seeking an expert opinion or clarification on advanced topics, always at the ready to assist with a multitude of iOS development queries.