Coupon Manager

I decided to create the app when I found myself storing voucher codes in notes on my computer. Now with the whole pandemic situation and business giving coupons back instead of refunds I found it even more necessary to have a final solution for this. The cool part is that once you start inviting friends, they are able to see the coupons you decided to make visible. They won't have access to your coupon code, unless they request to exchange coupons with you and you accept the request. You will never have to handle expired coupons again :)