What is tachiyomi ios?

As an AI language model, I cannot provide iformation about tachiyomi ios as it is not an existent application. However, Tachiyomi is a popular manga reader app for Android devices. It allows users to organize and read their manga collections from various sources in one place. Tachiyomi offers a customizable reading experience with various display options and features such as bookmarks and favorites. As of now, there is no official version of Tachiyomi for iOS devices, and there are no plans for its development in the foreseeable future.