---
title: applicationUsageByCategory
framework: sensorkit
role: symbol
role_heading: Instance Property
path: sensorkit/srdeviceusagereport/applicationusagebycategory
---

# applicationUsageByCategory

The usage time of apps per category.

## Declaration

```swift
var applicationUsageByCategory: [SRDeviceUsageReport.CategoryKey : [SRDeviceUsageReport.ApplicationUsage]] { get }
```

## Discussion

Discussion The framework interprets the category using the primary genre an app supplies in its iTunesMetadata.plist.

## See Also

### Analyzing App Use

- [SRDeviceUsageReport.ApplicationUsage](sensorkit/srdeviceusagereport/applicationusage.md)
- [SRDeviceUsageReport.CategoryKey](sensorkit/srdeviceusagereport/categorykey.md)