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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.
Notix.co - NOTIX is an audience re-engagement service based on web and in-app push notifications that work for both desktop and mobile devices.
Truepush - Unleash limitless possibilities with Truepush and save up to $600 monthly. Free up to 10K Subscribers on all features.
E-goi - Email Marketing companies, SMS Marketing, software email marketing.
iZooto - Engage your mobile and desktop web users with intelligent web push notifications.
PushCrew - Push Notifications for Websites