# yapstudios/YapDatabase

YapDB is a collection/key/value store with a plugin architecture. It's built atop sqlite, for Swift & objective-c developers.

Repository: https://github.com/yapstudios/YapDatabase
Canonical: https://ross.abutalabs.com/products/yapdatabase
Language: Objective-C
License: NOASSERTION
License Family: other
Last push: 2022-09-07T10:12:06+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 5004, "days_push": 1456, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- 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 3331, forks 368 (observed 2026-08-28T04:07:56.614288+00:00)

## What it is
YapDatabase is a collection/key/value store built atop SQLite for Swift and Objective-C developers, targeting Apple platforms. It features a plugin architecture with built-in caching, metadata, views, secondary indexing, and full-text search.

## Use cases
- store key-value data locally in an iOS app
- persist objects with metadata on macOS
- add full-text search to a mobile app database
- query stored objects with secondary indexes
- build auto-updating views for table views
- read from a database concurrently while writing on a background thread

## When to choose
- you're building an iOS/macOS/tvOS/watchOS app in Swift or Objective-C needing a flexible local store
- you want built-in caching, views, and FTS without writing SQL
- you need concurrent reads and writes without blocking the main thread

## When to avoid
- you need a cross-platform (non-Apple) database
- you prefer a relational ORM or Core Data-style stack
- you need a project with frequent recent releases and active maintenance

## Facets
- artifact type: library
- maturity: maintenance
- function: database, caching, search-engine, serialization
- domain: databases, mobile-development, developer-tools
- platform: cpp
- tags: key-value-store, sqlite, objective-c, cocoapods, tvos, watchos, full-text-search, plugin-architecture, ios, macos, swift

## Member repositories
- yapstudios/YapDatabase (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:56.614288+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 2026-08-29T18:41:43.003674+00:00, confidence not recorded.
  - readme: https://github.com/yapstudios/YapDatabase (fetched 2026-08-28T04:07:56.614288+00:00, sha f3435ee5a6ae)
- Data as of 2026-08-30T08:39:29.467469+00:00.