Eney
beta exclusive

Meet Eney, a local-first AI assistant for busywork

Learn More

Ratings and reviews


Simon icon image

Simon

78%

50 ratings

Adam Engst

Jul 2, 2025

App version: 5.1.1

Essential for monitoring webpages (like Apple’s Newsroom and Security Updates pages) for changes and being alerted when they update.

Stefan Kopec

Mar 10, 2024

App version: 5.1.1

Viele Fehler und wenig inituitiv. Das Handbuch hilft nicht weiter.

Sylvio

Feb 21, 2024

App version: 5.1.1

Pratique, mais nécessaire de le relancer à chaque session, malgré l’activation du réglage « lancer automatiquement Simon… ».

Robert

May 23, 2023

App version: 5.1.1

App stürzt oft ab und schließt sich komplett. Domain-Endung .tv funktioniert nicht bei den „Tests“. Wäre eine wunderbare App, wenn sie richtig funktionieren würde.

Response from Developer

May 24, 2023

The German localization has some issues; try using it in English (you can set per-app localization in System Settings) and it should be more reliable. Sorry about that!

Thomas

Mar 20, 2023

App version:

Every time i try to setup a service, the program crash.

Response from Developer

Apr 12, 2023

Sorry about that! Check out Simon version 5.1.1, which has just been released. It fixes a couple of crashers.

Chris

Sep 26, 2022

App version:

Maybe I’m not in the target user group for this app, but I run several servers, both in the cloud and at home, so I thought this app would make it easy for me to monitor those. But when I open the app, I don’t understand what I’m looking at, apparently, it lists the services on my local machine. OK. So how do I add a remote server for monitoring? The + button doesn’t seem to do anything. Apparently, I can add a ”new group” (of what?). I click on everything clickable but can’t make sense of anything. I quit the app and when I open it a second time, it looks somewhat different. The + button now offers me ”New Test”, ”Duplicate Test”, ”New Group” and ”New Group with Selection”. It looks like this just doesn’t do what I expected. And if it does, it is good at hiding it from the user.

Response from Developer

Apr 12, 2023

To monitor a remote site, select the Tests item in the sidebar, and choose File ▸ New Test (or click the + and add one via that). In the test editor, go to the Service page, choose a Web Page service, and enter the URL of the page. Simple as that. Look at the provided examples for other examples. Groups are like folders, to organize many tests; the app comes with one group of examples. Hope this helps, and sorry for the delay replying!

Carlos G

Jun 25, 2024

App version: 5.1.1

no se entiende el uso

Ghazal Haj Asaad (DTC Communit

Mar 9, 2024

App version: 5.1.1

Unhelpful………

Vitaliy

Aug 10, 2023

App version: 5.1.1

i don’t liked

George

Apr 12, 2023

App version:

Wonderful and responsive developer. Committed to his products and goes the extra mile when you hit a snag. I would highly urge anyone who has problems to get in touch with David Sinclair vs just giving a poor review. This app is a life saver! Thank you!

Response from Developer

Apr 24, 2023

Thank you for the kind words. And yes, I'm happy to help; email support at dejal.com for assistance.

Bertrand

Jan 19, 2023

App version:

This app is obviously made by and for an IT geek!
The UI is anything but user-friendly. Very confusing! The online help is really too succinct, bordering on the unusable. No example to help understand. The vocabulary used is rather ill-defined and it takes a good deal of imagination and trial and error to understand it properly.

The sample tests provided are far too simple and too few to allow a good understanding of the philosophy of the software. In short, it is necessary to go there a little blindly to manage to understand a little. Not to mention that the version I installed (paid) does not give me any report template and does not provide any explanation on how to create one!

So yes, this application certainly has great potential... But to use it, you have to get up early!

Response from Developer

Apr 12, 2023

I'm sorry it isn't sufficiently intuitive. It is a pro tool, so does have a little bit of a learning curve, but the provided example tests should get you started. Feel free to email [email protected] if you have questions.

Christian Wuest

May 6, 2024

App version: 5.1.1

Very crash-happy, but gets the job done with some experimentation. Not incredibly intuitive.

Jaime Jesus

Feb 28, 2024

App version: 5.1.1

Não gostei. Ainda não percebi se é demasiado complexo ou apenas inutil para mim.

Jan Stoltenhoff

Aug 3, 2023

App version: 5.1.1

What happened to the last version? Simon was quite useful and stable over the last years, this redesign is unfortunately not :-(

Alexander Fischer

Apr 6, 2023

App version:

Constantly crashing - can not configure services

Response from Developer

Apr 12, 2023

Sorry about that! Check out Simon version 5.1.1, which has just been released. It fixes a couple of crashers.

mac IT better

Nov 9, 2022

App version:

does not start at all or crashes on catalina and moneterey i would REALLY love to have the app available in Setapp. thx for your efforts :) oliver

Response from Developer

Apr 12, 2023

Sorry about that! Check out Simon version 5.1.1, which has just been released. It fixes a couple of crashers.