Azure Notification Hubs provides a highly scalable, cross-platform push notification infrastructure that enables you to either broadcast push notifications to millions of users at once or tailor notifications to individual users. You can use Notification Hubs with any connected mobile application – whether it’s built on Azure Virtual Machines, Cloud Services, Websites or Mobile Services.
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Notification Hubs is offered in three tiers: Free, Basic and Standard. Base charge and quotas are applied at the namespace level. Pushes exceeding included amounts are aggregated at the subscription level for each tier.
|Base charge per namespace||Free||$-/month||$-/month|
|Included pushes per subscription per tier||1 Million||10 Million||10 Million|
|Additional pushes per subscription per tier (price per million pushes)|
|10M – 100M||Not available||$-||$-|
|Over 100M||Not available||$-||$-|
|Namespaces per tier||10||10||Unlimited 1|
|Hubs per namespace||10||10||100 2|
|Active devices per namespace||500||200,000||10,000,000 3|
|X-plat push to individual devices|
|Queryable Audience (registration queries)|
Support and SLA
- We provide technical support for all Azure services released to General Availability, including Notification Hubs, through Azure Support, starting at $29.0/month.
- For Basic and Standard Notification Hub tiers, we guarantee that, at least 99.9% of the time, properly configured applications will be able to send notifications or perform registration management operations with respect to a Notification Hub deployed within a Basic or Standard Notification Hub Tier. To learn more about our SLA, please visit the SLA page.
- What is a subscription? What is a namespace? What is a hub?
An Azure subscription helps you organise access to cloud service resources, where Notification Hubs is a resource. A Namespace is a grouping mechanism that may contain multiple notification hubs and sits in one region. A hub is an engine that simplifies push and sends notifications to cross-platform applications with features in Notification Hubs.
- What do pushes include?
Pushes include all notifications delivered to the platform notification services (e.g. Windows Notification Service, Apple Push Notification Service, Google Cloud Messaging and Microsoft Push Notification Service).
- How does auto-scaling work for the Basic and Standard tiers?
Both Basic and Standard tiers do not require auto-scaling. Customers can use unlimited number of Pushes at published rates.
- Are there any daily push quotas for Notification Hubs?
There are no daily Push quotas.
- What is an Active Device?
Active Devices are devices eligible to receive notifications and are defined as unique registration IDs for devices using Google Cloud Messaging or Amazon Device Messaging, channel URI (Uniform Resource Identifier) for devices using Windows Notification Service or Microsoft Push Notification Service, or device token for devices using Apple Push Notification service.
- What happens when the Active Device quota is reached?
All new registrations against any hubs within the namespace in which the Active Device quota has been reached will be interrupted.
- How do I upgrade or downgrade my Notification Hubs to change my service tier?
Go to the management portal, ServiceBus, and click on your namespace then your notification hub. Under the Scale tab, you will be able to change your Notification Hubs service tier.
- Billing examples
1. The subscription has two Basic namespaces and sends 5 M and 9 M pushes respectively with the two. The subscription will be charged $24 for the month. $20 comes from the base charges for the two namespaces. As pushes are aggregated at the subscription level for each tier, the subscription sent a total of 14 M pushes in Basic Tier. The 4 M overage results in a charge of $4.
2. The subscription has one Free namespace, one Basic namespace and one Standard and sends 2 M, 10 M and 10 M pushes respectively amongst the three. The Free namespace exceeds 500 Active Devices, and the subscription is charged $210. New device registrations will be interrupted and only 1 M out of the 2 M pushes will have gone through at random for the Free namespace. The Basic namespace is charged $10 and the Standard namespace is charged $200 as there was no overage.