Bloom is an e-mail optin plugin from Elegant themes. Forms can be placed with shortcode or popup forms with multiple types available with many templates.
Bloom is available via a yearly subscription or
I use Bloom as my go-to
After testing many alternatives, I have settled on Bloom as I have started to use more of the features available – the optin form below for example.
Full review to follow.
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Bloom is the most popular optin plugin available for WordPress
Bloom Optin Review
Bloom is a great optin newsletter plugin available as part of the Elegant Themes package. Bloom integrates with many popular autoresponders and mailing services and produces nice optin forms.