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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 more...

What's New

Version 4.1.1:
  • Fixed a crash on OS X 10.11 when changing tests with the Preview displayed.
  • Improved the layout of the Preview.
  • Added exceptions to OS X 10.11's restrictions on http:// access.
  • Fixed several issues raised by the latest development tools.


  • OS X 10.10 or later

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Current Version (4.x)


Downloads 32,587
Version Downloads 262
Type Internet / Servers
License Shareware
Date 20 Sep 2015
Platform Intel 64 / OS X
Price $99.00
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