What is the difference between 'Sent', 'Recipients', and 'Delivered' in push notification statistics?

When reviewing your push notification statistics, you will see several key metrics. Understanding the difference between them is important for analyzing your campaign's performance.

• Sent: This is the total number of devices the system attempted to send a notification to. These are all devices that had a valid push token and matched your chosen segmentation criteria at the time of sending.

• Recipients: This is a subset of the 'Sent' audience. It excludes users who have opted out of receiving push notifications (i.e., their device has the Push alerts enabled tag set to 0).

• Delivered: This metric counts the number of successful delivery confirmations received by our servers from the Pushwoosh SDK integrated into your app. It indicates that the notification has successfully arrived on the user's device.

Why is my 'Delivered' count much lower than 'Recipients'?

A significant discrepancy between 'Recipients' and 'Delivered' is often related to how delivery tracking works on different mobile operating systems:

• Android: For apps using a current version of the Pushwoosh SDK, delivery confirmations are sent back automatically.

• iOS: To receive delivery confirmations from iOS devices, you must implement an additional feature called iOS Message Delivery Tracking. If this feature is not implemented in your app, you will not receive delivery data from your iOS users, and the 'Delivered' statistic will only reflect your Android audience.

To get more accurate delivery statistics, we recommend implementing the iOS message delivery tracking feature. You can find the necessary steps in our developer documentation: iOS Message Delivery Tracking Guide

Note: Due to various device and operating system behaviors (e.g., a device being offline), the 'Delivered' metric should be considered a close estimate rather than an exact count.