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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.

About the Release Notes

Want to know what has changed since a previous version? This page lists those changes. You can alter the range of release notes to display if you wish.

The latest release of Simon is version 5.0.1.

Display from version to version as Including betas

Simon 2.4.2
(Release 2043): released 2008-09-03; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.4.1
(Release 2042): released 2008-06-22; requires macOS 10.4 or later; Universal Binary; Leopard-ready
Simon 2.4
(Release 2041): released 2008-05-12; requires macOS 10.4 or later; Universal Binary; Leopard-ready

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