# reactiveui/Akavache

An asynchronous, persistent key-value store created for writing desktop and mobile applications, based on SQLite3. Akavache is great for both storing important data as well as cached local data that expires.

Repository: https://github.com/reactiveui/Akavache
Canonical: https://ross.abutalabs.com/products/akavache
Homepage: https://evolve.xamarin.com/session/56e2044afd00c0253cae33a3
Language: C#
License: MIT
License Family: permissive
Topics: c-sharp, cache, reactive-extensions, reactive-programming, xamarin, dotnet, akavache, cross-platform
Last push: 2026-08-26T15:36:37+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 84, longevity 100
- inputs: {"age_days": 5388, "days_push": 7, "days_rel": 26, "gap_med": 65, "n_releases_24m": 10}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2553, forks 281 (observed 2026-08-28T04:07:00.606620+00:00)

## What it is
Akavache is an asynchronous, persistent key-value store for .NET desktop and mobile applications, built on SQLite3. It supports storing important data like user settings as well as expiring cached local data, with an observable-first API based on Reactive Extensions.

## Use cases
- persist user settings in a mobile app
- cache HTTP responses locally with expiration
- store key-value data asynchronously in a desktop app
- cache images or API data offline in a Xamarin app
- encrypt local app databases
- replace sqlite-net-pcl with direct SQLite access for lower allocations

## When to choose
- you're building a .NET desktop or mobile app needing persistent local storage
- you want an async, observable-based cache with expiration support
- you need encrypted local databases via SQLite3MultipleCiphers
- you want AOT/trim-safe serialization with System.Text.Json

## When to avoid
- you need a relational database with complex queries and joins
- you're not on the .NET ecosystem
- you need a server-side or multi-client shared datastore
- you want a synchronous storage API

## Facets
- artifact type: library
- maturity: active
- function: caching, database, serialization
- domain: mobile-development, desktop-applications, databases, cross-platform
- platform: dotnet, cross-platform
- tags: key-value-store, sqlite3, reactive-extensions, xamarin, persistent-cache, async, mobile, desktop

## Member repositories
- reactiveui/Akavache (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:00.606620+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 2026-08-30T02:23:47.353106+00:00, confidence not recorded.
  - readme: https://github.com/reactiveui/Akavache (fetched 2026-08-28T04:07:00.606620+00:00, sha c82f030c3891)
- Data as of 2026-08-30T08:39:29.467469+00:00.