Thaqalayn Hadith Library is a digital collection of the Shī'ī ḥadīth corpus, aiming to provide English translations of classical Shī'ī Ḥadīth books alongside the original Arabic text. The library currently houses over 20,000 aḥādīth, with additional translations in progress.

The app offers offline functionality, an advanced search feature, automatic updates, and a saved section to organize aḥādīth into custom categories. Users can stay informed through the news page for updates on the library and upcoming translations. Customization options allow users to adjust font sizes and displayed content, while a share function enables easy sharing of favorite ḥadīth with references via messaging apps.