The Update Alpha 0.16.0: Boss Update Title update for Minecraft (iOS) has 9 achievements worth 250 gamerscore.
Kill the Wither
Spawn the Wither
Defeat an Elder Guardian
Create and fully power a Beacon
Dry a sponge in a furnace
Cook and Eat Rabbit Meat
Power a Furnace with Lava
Stay underwater for 2 minutes
Eat an Enchanted Apple