Amazon Simple Notification Service (Amazon SNS) is a

notification service A notification service provides means to send a notice to many persons at once. For example, if a flood were likely, residents of a community could be warned it's time to evacuate. If a school were suddenly closed for the day, students or paren ...

provided as part of

Amazon Web Services Amazon Web Services, Inc. (AWS) is a subsidiary of Amazon that provides on-demand cloud computing platforms and APIs to individuals, companies, and governments, on a metered pay-as-you-go basis. These cloud computing web services provide d ...

since 2010. It provides a low-cost infrastructure for the mass delivery of messages. Amazon SNS acts as a single message bus that can message to a variety of devices and platforms, including

Kindle Fire The Amazon Fire, formerly called the Kindle Fire, is a line of tablet computers developed by Amazon. Built with Quanta Computer, the Kindle Fire was first released in November 2011, featuring a color 7-inch multi-touch display with IPS tech ...

and

Baidu Baidu, Inc. ( ; , meaning "hundred times") is a Chinese multinational technology company specializing in Internet-related services and products and artificial intelligence (AI), headquartered in Beijing's Haidian District. It is one of the l ...

. A single code interface can address all of these equally, or message formats can be tailored to the particular needs of each platform. Amazon SNS can also deliver messages by SMS to 200+ countries.

Description

Amazon SNS uses the publish/subscribe model for push delivery of messages. Recipients subscribe to one or more 'topics' within Amazon SNS. Typically, this is hidden from the user as an internal part of a

mobile app A mobile application or app is a computer program or software application designed to run on a mobile device such as a phone, tablet, or watch. Mobile applications often stand in contrast to desktop applications which are designed to run on d ...

. Receipt of a message may also be hidden from the user: this service is largely aimed at the internal processing of specific apps rather than as a generic email substitute. A game might receive bonus-level announcements or unlock keys for in-game purchases by this route. A ticket booking app could use it for confirmation vouchers, boarding passes or notifications of a delay to a flight. The first 1 million Amazon SNS requests per month are free, and $0.50 per 1 million requests thereafter will be charged as per the latest costing structure. Pricing varies according to the delivery mechanism: there is a charge to request a message ($0.50 /million) and a varying charge for how (and if) the recipient chooses to receive it. HTTP is cheapest for retrieval ($0.60 /million), email is around 30 times this ($20 /million) and SMS considerably (hundreds of times) more ($7,500 /million). Like most

cloud service Cloud computing is the on-demand availability of computer system resources, especially data storage (cloud storage) and computing power, without direct active management by the user. Large clouds often have functions distributed over multi ...

s, initial access costs are kept low and there are no sign-up or subscription charges.

References

External links

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