insulinDelivery: HealthKit quantity type
HKQuantityTypeIdentifierInsulinDelivery · read from Apple’s documentation on 2026-10-02
HKQuantityTypeIdentifier.insulinDelivery (Objective-C HKQuantityTypeIdentifierInsulinDelivery) is a HealthKit quantity type in Apple's "Lab and test results" group. Apple's abstract: “A quantity sample that measures the amount of insulin delivered.” Apple's discussion says its samples use international units and measure cumulative values, so in HKStatisticsQuery it takes .cumulativeSum. It is available from iOS 11.0 and watchOS 4.0.
What Apple says insulinDelivery is
A quantity sample that measures the amount of insulin delivered.
Apple’s abstract, quoted from its insulinDelivery reference page, read 2026-10-02. Apple’s discussion of the type runs 16 words.
- Swift
HKQuantityTypeIdentifier.insulinDelivery- Objective-C
HKQuantityTypeIdentifierInsulinDelivery- Family
HKQuantityTypeIdentifier- Apple's topic group
- Lab and test results
- Group page
- Lab and test results
- Apple's reference
- insulinDelivery on developer.apple.com
Availability
The versions Apple’s documentation data gives for insulinDelivery, platform by platform, as read on 2026-10-02.
| Platform | Introduced | Deprecated |
|---|---|---|
| iOS | 11.0 | — |
| iPadOS | 11.0 | — |
| Mac Catalyst | 13.0 | — |
| macOS | 13.0 | — |
| visionOS | 1.0 | — |
| watchOS | 4.0 | — |
The rest of that release: HealthKit Types Introduced in iOS 11.
Sum or average, and in which units
Apple states both of these in the prose of the type’s discussion, not as properties, so they are derived from Apple’s sentence and the sentence is shown with each.
Aggregation style
cumulative — in an HKStatisticsQuery, use .cumulativeSum. Apple’s sentence:
These samples use international units (IU) (described in ) and measure cumulative values (described in ).
Unit family
international — every type in this family is on the HKUnit reference.
Apple states it in the same sentence as the aggregation style, quoted above.
Empty parentheses and a dangling “described in” mark links in Apple’s sentence to other documentation pages: the generator keeps the sentence’s text, not its links, and the quote is left as stored rather than repaired.
Can apps write insulinDelivery?
Apple’s documentation for insulinDelivery does not state that its samples are read-only. Apple states read-only status only in prose, and its silence is not a statement either way, so this page makes no claim that apps can save it.
On Android Health Connect
No verified Health Connect counterpart. The cross-platform matrix pairs only metrics checked against both Apple’s and Google’s documentation, and insulinDelivery is not among them. A similarly named Health Connect record may exist, but a name match is not a verified mapping.
Metadata keys Apple ties to it
The HKMetadataKey constants whose own Apple text names insulinDelivery, with the sentence that does, from Apple’s metadata-key pages read 2026-10-04.
- HKMetadataKeyInsulinDeliveryReasonvalue: NSNumber
This key is required for insulinDelivery samples.
Questions
- Should I sum or average insulinDelivery in HealthKit?
- Sum it. Apple's documentation for insulinDelivery describes it as measuring cumulative values, so an HKStatisticsQuery over it takes .cumulativeSum. Apple's sentence, as read on 2026-10-02: "These samples use international units (IU) (described in ) and measure cumulative values (described in )."
- Which unit family does Apple give insulinDelivery?
- International. Apple's discussion of insulinDelivery says its samples use international units: "These samples use international units (IU) (described in ) and measure cumulative values (described in )."
- Which HealthKit metadata keys mention insulinDelivery?
- HKMetadataKeyInsulinDeliveryReason. Apple's text for HKMetadataKeyInsulinDeliveryReason: "This key is required for insulinDelivery samples."
- Which iOS version added insulinDelivery?
- iOS 11.0. Apple's availability data for insulinDelivery lists iOS 11.0, iPadOS 11.0, Mac Catalyst 13.0, macOS 13.0, visionOS 1.0 and watchOS 4.0.
Sources checked
- Apple — HKQuantityTypeIdentifier.insulinDelivery · read 2026-10-02
- Apple — HKQuantityTypeIdentifier · read 2026-10-02
- Apple — HKMetadataKeyInsulinDeliveryReason · read 2026-10-04
Apple’s abstract and sentences are quoted for identification; the page layout, the capsule and the cross-platform pairing are AIFitnessAPI’s. Generated from Apple’s documentation by scripts/fetch-healthkit-identifiers.mjs, not typed by hand — the same data as the full identifier table.