CoinDuck
World 1st offline payment service using Ethereum
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Hunter's comment
CoinDuck is a world's first offline crypto payment method. No need to download separate wallet, just scan the QR code and pay amount.
Simple
Bring your own cryptocurrency and pay for things like food, rent or in-app purchases.
Samsung’s latest smartphone - Galaxy S10 may use CoinDuck as part of it's built in crypto wallet.
Link
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