---
title: HKUpdateFrequency.weekly
framework: healthkit
role: symbol
role_heading: Case
path: healthkit/hkupdatefrequency/weekly
---

# HKUpdateFrequency.weekly

The system launches your app at most once per week in response to changes.

## Declaration

```swift
case weekly
```

## See Also

### Constants

- [HKUpdateFrequency.immediate](healthkit/hkupdatefrequency/immediate.md)
- [HKUpdateFrequency.hourly](healthkit/hkupdatefrequency/hourly.md)
- [HKUpdateFrequency.daily](healthkit/hkupdatefrequency/daily.md)