Stir together the POM Wonderful® juice and the apple juice (if using), and add the chia seeds.
Set aside in the fridge for about 30 minutes to allow the chia seeds to soften a bit.
Pour the juice into popsicle molds, making sure you leave a bit of headspace (about 1/4-inch) at the top to allow the juice to expand as it freezes.
Freeze overnight.
Release the popsicles from the molds by rinsing the mold under warm water.
Store in a sealed freezer bag or sealed freezer container.
Enjoy!
Notes
The apple juice adds a bit more sweetness to the popsicle, but if you want a stronger pomegranate flavor with more tartness, use all POM Wonderful® instead of a bit of apple juice!