MailerLite - Affordable Email Marketing Software. Get all features (Segmentation, Automation, A/B testing) for up to 1,000 subscribers & send unlimited emails for free!
OneSignal - Customer engagement platform used by over 1 million developers and marketers; the fastest and most reliable way to send mobile and web push notifications, in-app messages, emails, and SMS.
Sendy - Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
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Publicate - Build Beautiful Emails. Export and Send Anywhere.
PushCrew - Push Notifications for Websites