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Simon monitors websites and alerts you of crashes and changes.

Select pages to monitor, choose your alert options, and customize your settings. Simon does the rest.

Keep a watchful eye on your favorite sites
  • Monitor any site. Want to receive an alert when a favorite blog has been updated? Or monitor activity on your personal page? If it's on the Web, Simon can watch it for you.
  • Enjoy flexible alert options. Find out about page changes via alarms, emails, or speech. Whether you're at work or at home, Simon has an alert option to match your level of

What's New

Version 4.2:
Added an Exclude Block filter
  • Added a new Exclude Block filter that outputs the text outside the block, instead of inside like the normal Block filter.
  • Enhanced the Block filter feature to support specifying whether to output the text before the Start, the Start text itself, the text between the Start and End, the End text, and/or after the End text, or any


  • OS X 10.10 or later

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Simon User Discussion

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3.9 28


Current Version (4.x)


Downloads 34,902
Version Downloads 2,256
License Shareware
Date 23 Feb 2016
Platform Intel 64 / OS X
Price $99.00
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