# badoo/MVICore

MVI framework with events, time-travel, and more

Repository: https://github.com/badoo/MVICore
Canonical: https://ross.abutalabs.com/products/mvicore
Homepage: https://badoo.github.io/MVICore/
Language: Kotlin
License: NOASSERTION
License Family: other
Topics: mvi, mvi-architecture, android, android-library, android-architecture, kotlin-android
Last push: 2026-08-22T06:11:15+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 8, longevity 100
- inputs: {"age_days": 3096, "days_push": 11, "days_rel": 518, "gap_med": null, "n_releases_24m": 1}
- 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 1303, forks 88 (observed 2026-08-28T04:04:18.370831+00:00)

## What it is
MVICore is a modern Kotlin-based MVI (Model-View-Intent) framework for Android that scales from a single reducer to full-featured architectures with events, middlewares, and reactive component binding. It includes an out-of-the-box logger and a time-travel debugger with UI controls for recording and playback of all reactive components.

## Use cases
- implement MVI architecture in an Android app
- handle one-off events without storing them in state
- bind reactive components with automatic lifecycle handling
- add custom middlewares for logging or analytics
- debug state changes with a time-travel debugger
- efficiently update views with ModelWatcher diffing

## When to choose
- building Android apps with unidirectional data flow in Kotlin
- you need event handling outside of state
- you want time-travel debugging of reactive components
- you want an MVI framework that scales with complexity

## When to avoid
- building for iOS, desktop, or non-JVM platforms
- you prefer Jetpack Compose state APIs or other state libraries like MVIKotlin or Orbit
- your project is not on Android/JVM

## Facets
- artifact type: library
- maturity: stable
- function: state-management, middleware, logging
- domain: mobile-development, android-tools, web-development
- platform: jvm
- tags: mvi, unidirectional-data-flow, time-travel-debugger, reactive-binding, kotlin, android

## Member repositories
- badoo/MVICore (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:18.370831+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 2026-08-30T04:51:11.253526+00:00, confidence not recorded.
  - readme: https://github.com/badoo/MVICore (fetched 2026-08-28T04:04:18.370831+00:00, sha c807b2ff3378)
  - homepage: https://badoo.github.io/MVICore/ (fetched 2026-08-29T12:09:12.896261+00:00, sha 1940ba164cdf)
- Data as of 2026-08-30T08:39:29.467469+00:00.