The Avatamsaka Sutra Siddhaṃs app contains the core 42 siddhams of the Avatamsaka Sutra with the name for each siddham, along with other siddhams. More siddhams will be added per requests. It supports both languages, English and Vietnamese. It also has the base meanings of the siddhams in Vietnamese. Users can also add new mantras or any related text contents of the siddhams.The original app name is 42 Seed Syllables, but since the app now can support more than just 42 sidhhams, hence, the name changes to Avatamsaka Sutra Siddhaṃs.