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Flexible server monitoring

Introducing Simon 5!

Simon version 5 is now available. It is a massive update, introducing a much-requested feature: syncing the Simon data between multiple Macs, plus a Simon Status service, a Link Checker filter, improved Find filter, iMessage and Speak Error notifiers, a new app icon, and much more.

Important: please note that Simon 5 requires a minimum of macOS 10.12 (Sierra), and is a paid upgrade from Simon 4. Purchasers since September 1, 2020 automatically get a version 5 license (that also works in previous versions).

Read the Simon What's New page for details.

Can I get Simon to periodically e-mail me to reassure me it is still working?

Yes, you can do this by using the Pulse service, with the Change filter. The Pulse service simply outputs the current date and time, so the output is always different. Then the Change filter detect that difference, marking the test as Changed.

You could also do this by adding a test for a frequently-updating page, like, which changes every second.

Either way, check it at whatever frequency you want to be e-mailed, and have an E-mail notifier for changes. You can customize the e-mail message to say "I'm alive!" or whatever you like.