F.O.X Nails USA review for Supercart

needed the features that this app offered but they need to use ONLY the cart they offered, you can't use it with default shopify cart. 2. i have a few electronics products that required extended warranty but there is no option to choose warranty only if some SKU added to cart, it will offer to ALL products that it stupid. i played around 10mins and deleted the app. also there is no chat in app , so nobody will help you asap.