Automation and scraping · Independent · 22 Oct 2026

bernaferrari/ChangeDetection

Change Detection - Automatically track websites changes on Android in background.

← Automation and scraping
ChangeDetection: website tracker. Tracks web page updates directly on your Android device.

In simple English

This application watches web pages for you. It checks prices, job postings and deadlines while you are away. When something changes, the app sends a notification to your phone. You can compare screenshots or text side by side to see what moved. It runs entirely on your device with no account required.

What it is

An open-source Android app that checks web pages in the background and compares saved versions. It is built with Kotlin Multiplatform and stores your history locally.

What it is good for

Anyone who wants to track restocks, price drops or application deadlines without keeping browser tabs open.

Stars743
LicenceApache-2.0
LatestNo tagged releasechecked 22 Oct 2026
Last code change2026-10-21
Written inKotlin
Setup effort
1 / 5
Payoff
4 / 5
Good
  • Runs locally on your phone with no account or server required.
  • Offers side-by-side screenshot, text and source code comparisons.
  • Includes a Turbo mode for frequent checks when timing matters.
Watch for
  • Frequent background checks will use extra battery and mobile data.
  • Pages that require complex sign-in or verification may fail to check properly.
  • Desktop and iOS versions are still in development.
Replaces

manually refreshing web pages or paid website monitoring services

Works well with

an Android phone or tablet

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How to get it

Get the app from Google Play or clone the repository to build it yourself with Gradle.

Independent: reviewed for Repo Radar outside the daily editions. Every independent repository

On Stack Radar: Data & Research › Web Scraping & Crawling › Change Monitoring.

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