Website change monitoring

https://www.hongkiat.com/blog/detect-website-change-notification/

changedetection

• GitHub

Android apps

https://f-droid.org/en/packages/com.bernaferrari.changedetection/

Web services

Visualping

https://visualping.io/

• monitor pixel, element or text changes
• Feature comparism per plan
  • Free plan:
    • Granularity: >=1h
    • 2 Pages per day

https://visualping.io/