# efremidze/Cluster

Easy Map Annotation Clustering 📍

Repository: https://github.com/efremidze/Cluster
Canonical: https://ross.abutalabs.com/products/efremidze-cluster
Language: Swift
License: MIT
License Family: permissive
Topics: map, cluster, clustering, mapkit, ios, swift, annotations, apple, cocoapods, carthage
Last push: 2025-07-08T21:26:16+00:00

## Health v2 (maintenance only)
Score: 36/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 30, release rhythm 8, longevity 100
- inputs: {"age_days": 3429, "days_push": 421, "days_rel": 421, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1296, forks 123 (observed 2026-08-28T04:04:16.887232+00:00)

## What it is
Cluster is a Swift library for iOS that aggregates MapKit map annotations into clusters using an efficient QuadTree algorithm. It supports adding and removing annotations, custom annotation views, animations, and multiple cluster managers.

## Use cases
- cluster map pins in an iOS app
- display thousands of MKAnnotations without performance issues
- group nearby map annotations into a single cluster view
- customize the appearance of clustered annotation views
- animate cluster expansion and collapse on a map
- manage multiple clustering configurations on one map

## When to choose
- you use MapKit on iOS and need performant annotation clustering
- you want a lightweight Swift library with CocoaPods, Carthage, and SPM support
- you need custom cluster annotation views and animation support

## When to avoid
- you are building for Android or cross-platform frameworks
- you use Google Maps or Mapbox instead of Apple MapKit
- you only have a handful of annotations and don't need clustering

## Facets
- artifact type: library
- maturity: stable
- function: ui-components, geospatial, data-visualization
- domain: mobile-development
- platform: -
- tags: mapkit, annotation-clustering, quadtree, cocoapods, carthage, swift-package-manager, maps, ios, swift, mobile

## Member repositories
- efremidze/Cluster (main) score 36

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:16.887232+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 2026-08-30T04:53:57.099100+00:00, confidence not recorded.
  - readme: https://github.com/efremidze/Cluster (fetched 2026-08-28T04:04:16.887232+00:00, sha ab9ae97b0db0)
- Data as of 2026-08-30T08:39:29.467469+00:00.