HealthKit is Apple's health and fitness data platform that allows apps to access and store users' health and fitness data. It includes APIs for collecting sensor data, accessing health records, and performing analytics on aggregated user data. Developers can use HealthKit to access data from various sources and apps, perform queries, and sync data to cloud storage, while requiring users' permission for each type of data access. The platform continues to expand its capabilities but still lacks some features like support for additional data types and integration with other platforms and standards.

1. Apple HealthKit
App Developer View
Prepared for Personal Analytics Meetup
By Gene Leybzon

2. Health/Fitness
Data Collection
Sensor-based apps
Health Provider
Information
Staring
Statistical/Personal
Analytics
Applications That Can benefit from
Health Kit

3. API
Statistics/Data Aggregation
Health Info Data Store
What’s in HealthKit?

4. Data Units Object Types
HealthStore
Access
Permissions
Data Save API
Data Query
API
What’s defined in API?

5.  What data is requested (Ex: Blood Sugar)
 How to sort result
 Predicate (how to filter data?)
 Limit on the amount of data
 Date/Time range
Simple Data Query API

6. Data Store
Listener
Listener
Data Observers (Observer Query)

7. Data Element 1
Data
Element 2
Data
Element 3
How to sync data with the cloud
store?

8. SUM()
MIN()
MAX()
AVERAGE()
HealthKit Statistics

9.  Group by day/hr
 Used to display graph/disarms with aggregated data
Statistics Collections

10. Quantitative
(Per Data Object)
Read or Write or
Both?
Possible
Permissions:
Not Determined,
Denied, Authorized
Separate
Permissions are
needed for each
data source
Data Access Permissions

11. Number
formatters
Units
(Kg/Pound)
Custom
formatters
Date
formatters
Energy
formatters
Localization

12.  Structured data support for more data types
 HL7 integration
 Support for other eco-systems (Android, Windows)
What is missing in the kit?

13. Code Demo