Based on our record, GetEmails seems to be more popular. It has been mentiond 2 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.
Maybe they use something like https://getemails.com/ ? It works only for emails but basically the same scenario. Source: about 2 years ago
I haven't had exposure to this space since the GDPR went into effect, but it used to be trivially easy to do this. A quick Googling shows there are still providers of this sort of service, such as GetEmails[1] which bills itself as '100% compliant in the US'. [1] https://getemails.com/. - Source: Hacker News / about 3 years ago
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