Ross ROSS = Recommend OSS · open-source software intelligence for agents

Corona-Warn-App

Native Android app using the Apple/Google exposure notification API. The CWA development ends on May 31, 2023. You still can warn other users until April 30, 2023. More information: observed · 2026-08-28

github.com/corona-warn-app/cwa-app-android · homepage · Kotlin · Apache-2.0 (permissive) · archived observed · 2026-08-28

Health v2 · maintenance only

10/100

  • Activity 0
  • Release rhythm 8
  • Longevity 100

Flags: archived

How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2286
  • days_rel: n/a
  • days_push: 1189
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

2394 stars · 484 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

The official open-source COVID-19 exposure notification app for Germany, developed by SAP and Deutsche Telekom for iOS and Android using the Apple/Google Exposure Notification framework with a decentralized, privacy-preserving Bluetooth approach. Development officially ended on May 31, 2023, with warning functionality ceasing April 30, 2023.

Use cases

  • trace covid-19 exposures via bluetooth
  • privacy-preserving contact tracing app
  • exposure notification app for germany
  • open source pandemic contact tracing
  • pseudonymous proximity warning system

When to choose

  • studying a production-grade decentralized exposure notification implementation
  • reviewing the architecture of a government-commissioned privacy-preserving tracing system
  • auditing the historical source code of the Corona-Warn-App

When to avoid

  • you need an active contact tracing solution today - the app is discontinued
  • you want a maintained codebase to contribute to
  • you need exposure notification functionality in a currently supported app

Facets

application · maturity abandoned

security privacy mobile-framework healthcare privacy mobile-development self-hosted cross-platform self-hosted covid-19 contact-tracing exposure-notification bluetooth digital-health german-government end-of-life android ios

1 source

Member repositories

For agents

markdown · JSON · MCP: product_card(name="corona-warn-app/cwa-app-android")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem