Add 2 tbsp cold water to a small bowl, sprinkle over 2 tsp gelatin powder, and place in the fridge for 5-10 minutes.
In a large bowl, whisk the cream cheese, sugar, and vanilla on medium speed for 2-3 minutes until creamy. Scrape the edges and bottom of the bowl with a rubber spatula halfway through.
Strain in the mango pulp and whisk until just combined. Do not overmix.
Remove the gelatin from the fridge and stir. Microwave for 10-15 seconds until the gelatin dissolves in the water.
Add the dissolved gelatin to the cheesecake filling and whisk on low speed until just combined.
In a separate bowl, whisk the chilled heavy cream on high speed until stiff peaks form.
Gently fold the whipped cream into the cheesecake filling until just combined. The batter should be light and fluffy.
Divide the batter evenly between the cups with the crust inside, and tap them so the filling spreads out evenly.
Place in the fridge overnight to set (at least 6 hours recommended).