Based on our record, CampaignKit seems to be more popular. 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.
End of 2021 I started campaignkit.cc. An Email validation service. I build the first version within a week and put it online. Started some advertisements on Reddit and Twitter. First people started to use it. Source: over 1 year ago
You can try my email validation service: http://campaignkit.cc/. Source: about 2 years ago
I’m the creator of https://campaignkit.cc and might be a little bit biased though. Source: about 2 years ago
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