# javiersantos/PiracyChecker

An Android library that prevents your app from being pirated / cracked using Google Play Licensing (LVL), APK signature protection and more. API 14+ required.

Repository: https://github.com/javiersantos/PiracyChecker
Canonical: https://ross.abutalabs.com/products/piracychecker
Language: Java
License: Apache-2.0
License Family: permissive
Topics: apk, signature, android-library, attacker, lvl, apk-signature-protection, verify, gradle
Last push: 2026-06-04T21:55:46+00:00

## Health v2 (maintenance only)
Score: 61/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 85, release rhythm 8, longevity 100
- inputs: {"age_days": 3751, "days_push": 90, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1569, forks 170 (observed 2026-08-28T04:05:05.214629+00:00)

## What it is
An Android library that helps prevent app piracy by verifying Google Play Licensing (LVL), APK signatures, and other tampering checks. It targets API 14+ and is integrated via Gradle/JitPack.

## Use cases
- prevent my android app from being pirated
- verify apk signature at runtime
- check google play license in my app
- detect if my app was cracked or modified
- block pirated copies of my android app
- add tampering detection to android app

## When to choose
- you distribute a paid app on Google Play and want lightweight license verification
- you want simple APK signature and install-source checks without building your own
- you need a drop-in Java/AndroidX library for basic anti-piracy

## When to avoid
- you need guaranteed protection against skilled reverse engineers (the README itself warns this is not foolproof)
- your app is not distributed via Google Play and you cannot use LVL
- you need server-side license validation or DRM

## Facets
- artifact type: library
- maturity: maintenance
- function: security, sdk
- domain: android-tools, security, mobile-development
- platform: -
- tags: apk-signature-protection, google-play-licensing, lvl, anti-piracy, tampering-detection, java, android

## Member repositories
- javiersantos/PiracyChecker (main) score 61

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:05.214629+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 2026-08-30T03:58:53.114882+00:00, confidence not recorded.
  - readme: https://github.com/javiersantos/PiracyChecker (fetched 2026-08-28T04:05:05.214629+00:00, sha 5bd6b55291ff)
- Data as of 2026-08-30T08:39:29.467469+00:00.