InKind app in LA?

Hi! Thinking of gifting my partner a giftcard from InKind. I don't live in the US so I am unfamiliar with this app but saw a deal on Costco which looked tempting. But I need some help please!

  1. Is InKind reliable?
  2. Once you make an InKind account, does it force you to enter your card number? Or can you just enter your gift card code immediately? Just that I know my partner might not want to put in bank details on a random app
  3. Lastly, any recommendations on affordable seafood restaurants near Marina Del Rey? Preferably one that offers gift cards or can accept InKind I guess.

Thanks!