Vampires, werewolves, and vampire-werewolf hybrids are absolutely appable! However, they would not retain most of their supernatural powers and some of the limitations would be removed.
A vampire (assuming traditional lore) could go into the sun (though they would probably burn far easier than any human), but they would lose their super strength and speed, though it would still be above the human average. They may still find that they crave blood and drinking it makes them stronger, but it would no longer be required to survive. Food and water could be consumed instead.
Werewolves (assuming traditional lore again) would no longer transform into a beast during the full moon, but they might find that the moon gives them extra energy and they may become more wild, crave raw meat, etc. Their senses will still be stronger than your average humans.
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A vampire (assuming traditional lore) could go into the sun (though they would probably burn far easier than any human), but they would lose their super strength and speed, though it would still be above the human average. They may still find that they crave blood and drinking it makes them stronger, but it would no longer be required to survive. Food and water could be consumed instead.
Werewolves (assuming traditional lore again) would no longer transform into a beast during the full moon, but they might find that the moon gives them extra energy and they may become more wild, crave raw meat, etc. Their senses will still be stronger than your average humans.