1. Real-time notifications on your Android, iPhone, iPad, and Desktop

  2. Free forever push notifications on Web and Mobile for everyone.

    free

  3. OneSignal is a free push notification service designed for mobile apps and games.

  4. G

    a simple self-hosted server for sending and receiving messages

  5. AI powered push notification delivery platform

  6. Web Push has 30x better opt-in than email. Increase engagement with your audience using web push notifications

  7. MailChimp is the best way to design, send, and share email newsletters.

  8. Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.