Audio Support: On their website page for "Vishnu Ashtottara," you can click a play button to hear the correct pronunciation by a Vedic priest.
PDF Download: They offer a high-resolution, colorful PDF of the 108 names with checkboxes for daily tracking.
Panchang Sync: The app syncs the chanting reminder with the actual sunrise time in your city (Chennai, Delhi, New York, London) so you don't chant during Rahu Kalam (inauspicious period).