# LoopKit/Loop

An automated insulin delivery app for iOS, built on LoopKit

Repository: https://github.com/LoopKit/Loop
Canonical: https://ross.abutalabs.com/products/loopkit-loop
Homepage: https://loopdocs.org
Language: Swift
License: NOASSERTION
License Family: other
Topics: diabetes, diabetes-app, diabetes-prediction
Last push: 2026-08-20T01:30:42+00:00

## Health v2 (maintenance only)
Score: 78/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 98, release rhythm 40, longevity 100
- inputs: {"age_days": 3753, "days_push": 14, "days_rel": 693, "gap_med": 2.0, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1713, forks 1426 (observed 2026-08-28T04:05:26.072084+00:00)

## What it is
Loop is an open-source iOS app template for building an automated insulin delivery (AID) system for people with type 1 diabetes. It integrates continuous glucose monitors and insulin pumps via LoopKit to predict glucose trends and automatically adjust basal insulin delivery.

## Use cases
- automatically adjust insulin dosing based on CGM glucose readings
- build a DIY closed-loop artificial pancreas system
- track glucose trends, carbs, and boluses on iPhone and Apple Watch
- predict future blood sugar levels and alert on loop or bolus failures
- monitor pump reservoir and battery status with notifications

## When to choose
- you are a technically skilled person with type 1 diabetes wanting a DIY automated insulin delivery system
- you use compatible CGMs and insulin pumps and want closed-loop control on iOS
- you want an open-source, customizable AID app built on LoopKit

## When to avoid
- you need a medically approved, regulated therapy device
- you are not comfortable building and maintaining your own medical software
- you use Android or non-compatible pump/CGM hardware
- you cannot accept the risks of highly experimental, non-therapy-approved software

## Facets
- artifact type: application
- maturity: experimental
- function: mobile-framework, monitoring, machine-learning
- domain: healthcare, mobile-development
- platform: -
- tags: diabetes, automated-insulin-delivery, closed-loop, cgm, insulin-pump, apple-watch, loopkit, diy-aps, automation, ios, swift, apple-ecosystem

## Member repositories
- LoopKit/Loop (main) score 78

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:26.072084+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:34:41.126576+00:00, confidence not recorded.
  - readme: https://github.com/LoopKit/Loop (fetched 2026-08-28T04:05:26.072084+00:00, sha a8ead8a907f7)
  - homepage: https://loopdocs.org (fetched 2026-08-29T11:10:37.790491+00:00, sha 44136fa355b3)
- Data as of 2026-08-30T08:39:29.467469+00:00.