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.
Take My Cash - Handpicked products from Amazon UK
Truepush - Unleash limitless possibilities with Truepush and save up to $600 monthly. Free up to 10K Subscribers on all features.
Locale - Locale helps content owners and translators work together, so Rails developers are free to write more code
PushCrew - Push Notifications for Websites
Interstate - Manage your projects using easy and powerful roadmaps.