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We’ve built the smartest, most aware, precise, easy-to-use, scalable, secure and powerful push messaging platform on the planet. Our Push messaging platform leverages all that is unique about mobile as a channel, and that lights the spark to create meaningful and valuable mobile experiences. We help put your app in front of your users at the right time, and in the right place to drive usage and brand engagement. | Add powerful communication features to your mobile app and data services for your backend<br> |
Industry’s best Push Messaging (with up to 1M messages per month, free).;Ready to go, proven and can be working in your app within hours.;Flexible APIs to drop in as-is or to completely customize.;Cross-platform ready (iOS, Android, Windows, Blackberry and more).;Enterprise-class uptime, security and scalability.;Comprehensive documentation.;Email support access.;Love, respect and appreciation from your developer friends here at UA. | Chat/IM;User login/registration, SSO;Video Calling;Push Notifications;Voice/VOIP Calling;Content & Files;Location;Ratings;Custom objects |
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Followers 153 | Followers 107 |
Votes 26 | Votes 7 |
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OneSignal is a high volume push notification service for websites and mobile applications. OneSignal supports all major native and mobile platforms by providing dedicated SDKs for each platform, a RESTful server API, and a dashboard.

Chat API and SDK. With a beautiful UI Kit, easy to use React Components and powerful API. Add Chat to any application in a matter of hours. The tech uses Go, RocksDB and Raft. By the creators of Stream, the API that powers activity feeds for more than 300 million users.

SendBird is a Messaging SDK, Chat API, and fully managed chat infrastructure for your mobile apps and websites. Embeddable chat for iOS, Android, JavaScript, Unity, .NET.

Sinch makes it easy for developers to add voice, messaging and SMS to their apps with just a few lines of code. Enrich your apps with communications that your users will love.

Google Cloud Messaging (GCM) is a free service that enables developers to send messages between servers and client apps. This includes downstream messages from servers to client apps, and upstream messages from client apps to servers.

Amazon Simple Notification Service makes it simple and cost-effective to push to mobile devices such as iPhone, iPad, Android, Kindle Fire, and internet connected smart devices, as well as pushing to other distributed services. Besides pushing cloud notifications directly to mobile devices, SNS can also deliver notifications by SMS text message or email, to Simple Queue Service (SQS) queues, or to any HTTP endpoint.

It is a cross-platform messaging solution that lets you reliably deliver messages at no cost. You can notify a client app that new email or other data is available to sync. You can send notification messages to drive user re-engagement and retention. For use cases such as instant messaging, a message can transfer a payload of up to 4KB to a client app.

Add In-App User-to-User Communication into Mobile Apps & Websites, with rich & engaging Text Chat, Video, and Audio Calling experiences, to Increase User Engagement and Enable new Revenue Streams.

Agora.io provides building blocks for you to add real-time voice and video communications through a simple and powerful SDK. You can integrate the Agora SDK to enable real-time communications in your own application quickly.

Amazon Pinpoint makes it easy to run targeted campaigns to drive user engagement in mobile apps. Amazon Pinpoint helps you understand user behavior, define which users to target, determine which messages to send, schedule the best time to deliver the messages, and then track the results of your campaign.