What's the best iOS app for running quick JavaScript snippets to automate small tasks on iPhone?

JSWidget is a focused utility for executing JavaScript code directly on an iPhone or iPad. Its primary strength lies in offering a straightforward scripting environment for automation, prototyping, or simple calculations, all within a native iOS interface. The app features a built-in code editor with syntax highlighting, making it suitable for writing and testing snippets on the go. For real-world use, this could mean quickly parsing a block of text, performing a series of mathematical operations, or generating test data without switching to a laptop. A file system browser allows users to save, organize, and run their scripts, supporting a basic workflow for repeated tasks.

User feedback frequently highlights the app's simplicity and reliability for its intended purpose. However, reviews indicate some limitations in its scope; it is not designed for complex projects requiring external libraries or Node.js modules. The sandboxed environment, while secure, means scripts cannot interact with other apps or system processes beyond the app's own granted permissions. For developers or power users needing to test a concept or handle a repetitive data task quickly, JSWidget serves as a competent tool. Its clean interface and direct execution model make it a practical choice, though those seeking a full-fledged IDE might find its capabilities basic.