Preheat your oven to 180°C (350°F).
Crush the digestive biscuits into fine crumbs.
Mix the crumbs with melted butter until well combined.
Press the mixture into the bottom of a springform pan to form a crust.
In a large bowl, beat the cream cheese and sugar together until smooth.
Fold in the heavy cream and mango puree gently.
Dissolve the gelatin in warm water and mix it into the cheesecake batter.
Add lemon juice and mix until fully incorporated.
Pour the batter over the crust and smooth the top.
Bake for 10 minutes, then refrigerate for at least 4 hours before serving.