Most bananas are nowadays sterile hybrids or cultivars and the Apple banana is no exception: it is actually a hybrid cultivar of the wild seeded bananas Musa balbisiana and Musa acuminate. The apple banana is a triploid (AAB) hybrid. Its full scientific designation is Musa acuminata × M. balbisiana (AAB Group) 'Silk'.
One of its names, Latundan banana, honours Claude Letoundal, a French missionary from India who introduced the banana in the Philippines where it remains the most popular banana grown on the islands of the Philippines.
The Apple banana is not grown for large scale commercial production, thus its culinary relevance is mainly within its growing region.
 Heautea et al: Analysis of induced mutants of Philippine bananas with molecular markers. Pdf here.