Reading100 is an iPhone app designed to convert websites into image books effortlessly. Users can convert their favorite websites into image books and store them privately within the app. The app simplifies the process of converting specific websites into image collections for easy access and reference.

For developers, Reading100 offers a useful feature that allows them to inspect HTML, akin to the inspect element function in Safari on MacOS. Developers can utilize regular expressions (regex) to extract HTML content from URLs, images, or image URLs. This functionality provides a practical platform for developers to enhance their regex skills and manipulate website content effectively.