Unity Services In-App Purchases: How to check if a user has bought a non-consumable product

I've recently activated in-app purchases (for Android and iOS) through Unity Services and walked through their tutorial (http://unity3d.com/learn/tutorials/topics/analytics/integrating-unity-iap-your-game-beta?playlist=17123). Though it describes how consumable objects might be purchased, I'm not sure what to do with a non-consumable purchase. I want to be able to communicate with the store when the user opens the game and find out which non-consumables they've purchased. Does Unity Services have a function for that? I could save the non-consumable purchase in PlayerPrefs right after user purchases clear, but PlayerPrefs doesn't seem secure.