Formstack might be a bit more popular than phpList. We know about 1 link to it since March 2021 and only 1 link to phpList. 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.
Phplist.com — Hosted version allow 300 emails/month free. - Source: dev.to / almost 3 years ago
Tired of paying $50 monthly for form mail on your website from https://formstack.com. Source: almost 3 years ago
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