Line a 9x13 baking sheet with parchment paper and set aside.
Dice the apples into small, bite-sized pieces. Use paper towels to pat the excess moisture from the apples.
In two separate bowls, melt 1 cup of both the semi-sweet and white chocolate chips by heating them in the microwave in 30-second intervals until completely melted. Be careful not to burn the chocolate by heating it too quickly.
Pour the chocolate onto the parchment paper in alternating lines. Use a rubber spatula or a spoon to spread the chocolate out into a fairly thick layer, swirling the two kinds together for a marbled look. It's okay if they smear together! Sprinkle the diced apples evenly over the chocolate.
Add the caramel bits to a medium bowl and heat in the microwave in 30-second intervals, until fully melted.
Carefully spoon the caramel over the bark, getting it as even as you can over the top.
Melt the remaining ¼ cup of each chocolate and drizzle over the top of the caramel.
Sprinkle the almonds and pepita seeds over the bark.
Refrigerate the bark for 2-3 hours, until the chocolate and the caramel is fully set up. Cut into pieces and serve the same day.
Notes
Feel free to add other optional toppings depending on what you like.