If the trees were grown from seed, it is almost guaranteed that the apple you have is unique, though it may share some characteristics with other varieties. All

If the trees were grown from seed, it is almost guaranteed that the apple you have is unique, though it may share some characteristics with other varieties. All apple varietals are grafted (cloned) from the original specimen onto other root stock. It sounds like they don't hold their flavor well, so they're unlikely to be suitable for large-scale commercial cultivation, though apparently there are active communities of apple enthusiasts who would be happy to take cuttings.