Based on our record, Metal Pay should be more popular than Haystack. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Metal (Metallicus Inc) the core developer is already generating revenue today with a functional licensed MSB and exchange in the United States (metalpay.com) which is soon integrating Proton blockchain as its core backbone for noncustodial transfers, identity, and signing. Source: over 2 years ago
Maybe you should check the metal (MTL) project and the proton (XPR) blockchain. With their app you can basically give your wallet a human name within their blockchain. Source: almost 3 years ago
Metalpay.com shows that BNB is an "available crypto" so I'd go with this option^. Source: about 3 years ago
If you are looking to make a virtual business card I would recommend using a website like https://thehaystackapp.com/ or other similar ones found online. In terms of what you want to include just your name may be a short listing of your experience and a picture of you. In terms of your portfolio again you would normally use a website creator and make your website. Some options there are Squarespace, Wix. WordPress... Source: about 3 years ago
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