Can I create a points-based store on Shopify?

[HarrisonW_28]

Hi, I'm looking to create a Shopify store but instead of purchasing products with money, we would like to make them redeemable by points. Can anyone recommend any existing apps or developer which could create this for me? We would like the ability to be able to add points manually too.

Does anyone have any ideas about whether this is possible either through Shopify, or Shopify + another app