Preheat oven to 350°F (175°C)
In a large mixing bowl, combine fruit,1/2 cup of Splenda, salt and tapioca pearls.
Mix well.
Pour into a 1.5 quart (1.4 Liter) medium-sized casserole dish with a lid.
In a small mixing bowl, add almond flour, 1/3 cup of Splenda brown sugar, Truvia and melted butter.
Mix with a pastry cutter or a fork, until you have a loose crumble.
Pour the crumble over the fruit mix and pat down with a spoon or your hands.
Bake at 350°F (175°C) for 30 minutes with the lid on or covered with aluminum foil.
Remove the lid and continue baking for another 15 to 20 minutes.
Remove from the oven and let cool before serving (at least 1/2 hour)