drewmccormack/ensembles

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1627 stars · 128 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Ensembles is a local-first synchronization framework that extends Apple's Core Data to sync SQLite persistent stores across macOS and iOS devices via file-sync services like iCloud and Dropbox, or peer-to-peer connections, without a dedicated server. This Objective-C version is deprecated in favor of the Swift rewrite Ensembles 3.

Use cases

• sync core data between ios and mac devices
• offline-first app with core data sync
• sync core data via icloud or dropbox without a server
• peer-to-peer core data synchronization
• keep local sqlite database in sync across apple devices

When to choose

• you have a legacy Objective-C Core Data app needing device-to-device sync
• you want local-first sync with no server infrastructure
• you sync via file-based backends like iCloud or Dropbox

When to avoid

• starting a new Swift project - use Ensembles 3 instead
• you need SwiftData support
• you need end-to-end encryption or modern backends like S3 or WebDAV

Facets

framework · maturity maintenance

backup database file-system mobile-development databases cross-platform cpp core-data local-first objective-c icloud dropbox offline-sync sqlite deprecated ios macos swift

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