GreenAddress might be a bit more popular than BitBay. We know about 1 link to it since March 2021 and only 1 link to BitBay. 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.
BitBay is originally Polish exchange yet (as I read somewhere) moved their business to Estonia. Also, I'd recommend Kraken. Source: over 2 years ago
Green address (the obsolete wallet here- https://greenaddress.it/en/) or blockstream green (new version of wallet here - https://blockstream.com/green/) ? Source: about 3 years ago
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