New Relic Mobile includes a monthly report with a bar chart tracking the number of devices running your app for each month over the last year. To view the report: Go to rpm.newrelic.com/mobile > (select an app) > Usage > Monthly uniques.
Monthly uniques report details
To see the total number of unique devices for any month, mouse over the month's bar in the chart. The current month's device count is a month-to-date value and does not indicate the full month's usage.

Use any of New Relic's standard user interface functions and page functions to drill down into detailed information.
Unique users are used to calculate your monthly usage, which is used to calculate your subscription level.
Device tracking
New Relic Mobile does not use hardware identifiers for unique install tracking.
- On iOS we use the IdentifierForVendor property. (Versions 5.3.4 and lower used the SecureUDID library.)
- On Android we generate a unique GUID when the application is installed.
For more help
Additional documentation resources include the Devices page (performance details about the top devices using your mobile application, including comparisons by HTTP request time, active users, and network failures).