# BoltsFramework/Bolts-Android

Bolts is a collection of low-level libraries designed to make developing mobile apps easier.

Repository: https://github.com/BoltsFramework/Bolts-Android
Canonical: https://ross.abutalabs.com/products/bolts-android
Homepage: http://boltsframework.github.io/Bolts-Android/
Language: Java
License: MIT
License Family: permissive
Archived: true
Last push: 2019-03-11T14:59:13+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4598, "days_push": 2732, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4005, forks 519 (observed 2026-08-28T04:08:32.162165+00:00)

## What it is
Bolts is a collection of low-level Java libraries for Android mobile development, created by Parse and Facebook. It provides a Task class for composable asynchronous programming (similar to JavaScript Promises) and an implementation of the App Links deep-linking protocol.

## Use cases
- manage complex asynchronous code on android without callback pyramids
- replace asynctask with composable promises in java
- handle incoming deep links between mobile apps
- implement the app links protocol in an android app
- run background operations off the ui thread
- chain and compose async operations with error handling

## When to choose
- you maintain a legacy Android codebase already using Parse or Bolts
- you need a lightweight promise-style Task abstraction in pure Java on Android
- you need App Links protocol support

## When to avoid
- you are starting a new Android project - Kotlin coroutines or RxJava are modern alternatives
- you need actively maintained libraries - the last release was in 2019
- you are not developing for Android/JVM

## Facets
- artifact type: library
- maturity: maintenance
- function: concurrency, developer-tools
- domain: mobile-development, developer-tools
- platform: jvm
- tags: async-tasks, promises, deep-linking, app-links, parse, android

## Member repositories
- BoltsFramework/Bolts-Android (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:32.162165+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 2026-08-29T18:24:04.290955+00:00, confidence not recorded.
  - readme: https://github.com/BoltsFramework/Bolts-Android (fetched 2026-08-28T04:08:32.162165+00:00, sha e55423a0acfd)
  - homepage: http://boltsframework.github.io/Bolts-Android/ (fetched 2026-08-29T09:17:00.326178+00:00, sha 7d1aa2ae0594)
- Data as of 2026-08-30T08:39:29.467469+00:00.