Losing HealthKit Data on Incremental Sync — Designing HKQueryAnchor Persistence
When step or sleep data double-counts or goes missing on incremental HealthKit sync, the root cause is usually HKQueryAnchor persistence. Here is a working Swift design that handles newAnchor and deletedObjects correctly and stays consistent across reinstalls and background updates.
Your Rork Max Health App Misses Overnight Steps — Designing Background Delivery When HKObserverQuery Dies Silently
In a native Swift health app generated by Rork Max, data recorded while the app is closed never arrives — and it's almost always because HKObserverQuery's background delivery stopped without a word. Here's how to isolate the layer that broke and an observation layer you can drop in as-is.
Reading Steps and Sleep into Your Rork Max Native App — HealthKit for Calm, Number-Light Wellness Apps
A walkthrough of adding HealthKit to the native Swift app Rork Max generates: reading steps, sleep, and heart rate, writing mindful sessions, and handling background delivery — including the App Store review wording and the production-only 'permission granted but zero data' trap.
Rork Max SwiftUI Native Features — Dynamic Island, Live Activities, HealthKit
Master Rork Max's SwiftUI native capabilities. Learn Dynamic Island, Live Activities, HealthKit, HomeKit, and 2-click App Store publishing—complete with implementation patterns and examples.
Building Apple Watch Apps with Rork Max — A Complete watchOS Companion App Guide
Learn how to build Apple Watch (watchOS) companion apps using Rork Max. This guide covers SwiftUI-based WatchKit development, iPhone communication, HealthKit integration, and complication implementation.
Build a Complete Fitness Tracker with Rork Max — HealthKit, Apple Watch, and Widget Integration
A comprehensive tutorial on building a fitness tracker app with Rork Max that integrates HealthKit, Apple Watch, and Home Screen widgets. From architecture design to App Store submission.