---
title: "add(_:)"
framework: metrickit
role: symbol
role_heading: Instance Method
path: "metrickit/mxmetricmanager/add(_:)"
---

# add(_:)

Registers to receive a daily report of app metrics from the metrics manager.

## Declaration

```swift
func add(_ subscriber: any MXMetricManagerSubscriber)
```

## Parameters

- `subscriber`: The object that receives the daily metrics reports. The object must conform to doc://com.apple.metrickit/documentation/MetricKit/MXMetricManagerSubscriber.

## Discussion

Discussion warning: If you call this function from a method that deallocates the object, your app might crash.

## See Also

### Subscribing to reports

- [remove(_:)](metrickit/mxmetricmanager/remove(_:).md)