In my opinion, you can try some gamified discount popup. It does not work actually the same way as you mentioned. It creates and executes effective email signup popups and gamified popups to boost subscribers and conversions. You can try this one - https://apps.shopify.com/tada-pop-ups-game-emails . You can use far longer with the free package. It's a gamified email popup app that asks the shopper to play a game to ‘win’ bigger discounts. Tada’s engaging pop-ups will allow you to collect more email addresses.