In Jainism, the Stitikaran Ang is one of the twelve original Jain scriptures known as the Dvādaśāṅgī (Twelve Angas). The Stitikaran Ang (Sanskrit: स्थितिकरणाङ्ग) specifically deals with the rules and calculations regarding the duration of the existence of matter (pudgala) and souls, and the time cycles.

If you are asking which other Ang (out of the twelve) is similar to Stitikaran Ang, it is most closely related thematically to the Jñātrapustaka Ang (Gñātādharmakathā), as both deal with aspects of Jain cosmology, time, and knowledge. However, every Ang has its own distinct subject matter. Among the Angas, Stitikaran Ang is unique in its detailed treatment of the persistence (stiti) or duration of substances.

In summary: Stitikaran Ang deals with the duration and persistence of substances and is most similar to other cosmological Angas such as Jñātrapustaka Ang, but each Ang is unique in its focus.