でんぶんSSまとめ is a viewer app for summary blog professionals. The app offers some unique features that are not typically found in other apps. There are three modes of the display-only text page, which can be enabled in the simple browser. Users can mark the works they've seen before as already read. The app also has a search function with keyword search capability, allowing users to search for works by title, author, or keyword. The app also allows users to exclude certain authors from their searches, making it easy to find works by the same author.

The app offers several types of list displays, including updates for all SS summary blogs, updates by anime and game titles, and updates by specific SS summary blogs. There is also a list of recently popular "attention" SS works and a list of works that have been mentioned on Twitter and Hatena bookmark. The app also functions as a browser with additional features such as favorites (bookmark) function, history display, automatic bookmark function (to jump to the previous read position), font size change, scroll with the volume key, and the ability to copy URLs and titles to Twitter.

Overall, でんぶんSSまとめ is a comprehensive viewer app that offers a wide range of features for summary blog professionals.