91958 is an iPhone app designed to streamline the creation of Scrapbox pages. With built-in support for input formatting, users can easily input content without hassle. The app offers convenient features such as simplified input formatting, easy project switching, and seamless integration with Gyazo for automatic conversion of Gyazo URLs into image formatting.

Notable for its ease of use, 91958 simplifies the process of creating Scrapbox pages and allows for quick project navigation. However, it comes with limitations as it only allows page creation without editing capabilities, though users can edit directly on Scrapbox from within the app. Additionally, there is a character limit of 1700 characters.