# caiyue1993/IceCream

Sync Realm Database with CloudKit

Repository: https://github.com/caiyue1993/IceCream
Canonical: https://ross.abutalabs.com/products/caiyue1993-icecream
Language: Swift
License: MIT
License Family: permissive
Topics: realm-database, realmswift, cloudkit, swift
Last push: 2025-06-13T11:45:17+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 26, release rhythm 8, longevity 100
- inputs: {"age_days": 3242, "days_push": 446, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2004, forks 259 (observed 2026-08-28T04:06:04.576324+00:00)

## What it is
IceCream is a Swift library that syncs a local Realm database with Apple's CloudKit service. It provides automatic, offline-first data synchronization across iOS, macOS, tvOS, and watchOS apps.

## Use cases
- sync realm database with cloudkit
- offline-first mobile app with icloud sync
- keep local data in sync across apple devices
- sync realm objects to a private cloudkit database
- automatic background data sync for ios apps

## When to choose
- your app uses Realm and you want free iCloud-based sync on Apple platforms
- you need offline-first storage with automatic background syncing
- you want to avoid running your own sync backend for an Apple-only app

## When to avoid
- you need cross-platform sync beyond Apple devices
- your app uses a database other than Realm
- you need server-side control or non-iCloud cloud storage

## Facets
- artifact type: library
- maturity: active
- function: database, backup, orm
- domain: mobile-development, databases, apple-ecosystem, cloud-computing
- platform: cross-platform
- tags: realm, cloudkit, sync-engine, offline-first, swift-library, ios, macos, swift

## Member repositories
- caiyue1993/IceCream (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:04.576324+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 2026-08-30T03:01:36.388855+00:00, confidence not recorded.
  - readme: https://github.com/caiyue1993/IceCream (fetched 2026-08-28T04:06:04.576324+00:00, sha ba886a45952c)
- Data as of 2026-08-30T08:39:29.467469+00:00.