Thank you for your review
Email me when discounted: 
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 more...

What's New

Version 3.6.1:
  • Fixed a conflict with some plug-ins that caused the Script preferences to not remember the color changes.
  • Now uses the failure check interval when a timeout occurs.
Version 3.6:
  • Added a new Notification Center notifier plug-in, that displays a notification in OS X's Notification Center, with various click action options. more...


OS X 10.6 or later

Similar Software

Open Comparison
Suggest Other Similar Software
Leave a Review

Simon Silver User Discussion

Nobody has reviewed or commented on this app yet. Add your own comment and get a discussion going!
Sort by: Time | Smiles
Spagh Member IconReview-1

Outstanding software ! Master Value. I use it to monitor 8 sites :

http/ftp/imap ... + . Never had any errors

Reply0 replies
Version 3.5.1
Jhommy Member IconReview+1

It simply works, wonderful and easy to use interface, if you are an admin, webmaster or anyone needing a third eye to keep on monitoring servers and network resources Simon is the right tool for the job.

Reply0 replies
Version 3.5
malcolmmoran Member IconReview+1

I love this app. Keeps track of 6 sites on three different ISPs.

Reply0 replies
Version 3.5
UntilGravity Member IconReview+45

I started using Simon about two weeks ago. Since then, it has done exactly what I hoped it would - let me know when my website servers are down without disrupting my workflow or hindering system memory. I'm quite impressed and look forward to seeing just how reliable my web hosts are. :)

Reply1 reply
Version 3.0.1

@skipnjen: I really hope you're using it for more than simply monitoring whether your site servers are up or down, as WebMonitor does just that and is free on the MAS. Simon is an app that does much more than monitoring the status of a site.

Tonycecala Member IconReview+6

I've used Simon for several years. Quietly monitoring my own sites for uptime and speed. I've always been impressed with the stability of the product. Over the years, new features have been added and I've really taken for granted just how powerful Simon is. With v3.0 I'm very pleased to be able to fine-tune filters and monitor my sites with more granularity.

Reply0 replies
Version 3.0
Rocurth Member IconComment+2

I really like Simon - its probably not replacing a permanent monitoring solution but it discovered problems with some off my webservers so often that i really don't want to miss it :)

Reply0 replies
Version 3.0
Mdoher1 Member IconReview+2

I cannot speak highly enough of this product and company.

Simon allows monitoring of websites to be performed in the background and records of up/down time to be kept. It also allows sophisticated filtering/conditions to be set up on the sites checking for changes etc. The interface is nice and clean and I had this application downloaded, installed and starting to do its job within 15 minutes of purchasing. IMHO - Simon is the best in its class on the Mac.

A word about the company...by far the best customer experience I have had with a software company in a very long time. Quick and honest replies...a real pleasure to deal with.

Product, price and customer service are all winners for me!

Reply0 replies
Version 3.0
Klagreca Member IconComment+182

Simon is a wonderful monitoring tool, but I was hoping for more robust reporting options in v3. It would be nice to analyze trends, compare data, or simply see a graph of say, ping times over a period of time. Robust reporting really is the 2nd half of any good monitoring service/app.

Reply1 reply
Version 3.0
Dejal Systems, Llc (Developer)

Thanks for your feedback. Simon 3.0 is a really big upgrade, but there's only so much that can be put in one release (if we ever want to release it!). Improved reporting features are definitely on the wishlist for a future version, along with lots of other great suggestions.

Kswaterman Member IconReview+14

Lets face it monitoring your website is much the same as backing up your computer, you just don't think about it until you have a problem. If you don't use a program such as Simon then the first time you may know you have a problem will be when you accidentally find the problem or even worse, like me, when you are officially given a take down notice because your website had been hijacked for a week.

Simon is a fantastic way of ensuring your personal or business websites are running smoothly and can even let you monitor other (competitors) sites for changes. I've always found Simon to be easy to use and configure and once set up there really is nothing you need to do other than start it and let it alert you to any changes or downtime.

I've been using Simon 2 for a few years and after using the beta version of Simon 3 for a little while I can say without reservation that this is the best version of Simon yet. It has managed to remain a simple to use program but has packed far more features into what was already a pretty feature packed program.

I would have to say Simon 3 really is a necessary upgrade for existing users, there are just simply too many new features and refinements to not consider an upgrade and if you have any type of web presence or website that you care about and don't have this program then you owe it to yourself or your business to buy this program.

Reply0 replies
Version 3.0b2
MrChips Member IconReview+137

This is one of those programs that "runs in the background" and therefore is seldom noticed. It just works! But it's saved my bacon on more than one occasion when a site or blog went down. It pretty much just works out of the box - not hard to figure out at all.

Also, I've never had an issue with it. But the developer has a good rep so I suspect I'd have no problem getting help if I needed it.

Reply0 replies
Version 2.5.2
user icon+3
Version 3.6.1
user icon+0
Version 3.5.1
user icon+0
Version 3.4
user icon+
Version 3.2
> 5 19


Current Version (3.x)


Downloads 30,660
Version Downloads 448
Type Internet / Servers
License Shareware
Date 26 Jan 2014
Platform OS X / Intel 32
Price $99.00
Learn how MacUpdate Desktop makes installing apps from MacUpdate.com one-click easy.
Next time, install Simon Silver with 1-click

Learn how MacUpdate Desktop can install apps on MacUpdate with the simple click of the Install apps with MacUpdate Desktop icon. Plus, keep all your apps updated. Play video...