Psst

Been using this since it was released, on multiple Macs and versions of OS X, and its always worked for me. I'm currently using it on a mid-'11 iMac i5 with Yosemite and it's still going. I set to the quietest setting, but not silent, so I can still tell if the machine is restarting properly but it won't wake up the whole house. Perfect.

I have tested Psst on my 2.8 GHz Intel Core 2 Duo iMac running OS X 10.8.5 Mountain Lion and it works perfectly, either completely muting or reducing the volume of the startup chime.

I Love this little utility app - I've used it for 6 years on a G4 Powerbook, a G4 Digital Audio, a MDD G4, and a G5 dual 2.0 (all running Tiger 10.4.11). Also worked on the G5 & the Powerbook under Leopard 10.5.6. After years of "too loud" startup chimes waking the kids at 3 AM [and freaking ME out as well!], I finally have the perfect solution! The app is 'persistent', so set it and forget it! (unless you want to make changes, then just relaunch & move the slider volume). One of my all-time favorite apps!! Does EXACTLY what it needs to, and DOESN'T mess with anything else! I've never had any app or sys process conflict with it.

I downloaded v.2.1.1 for my wife's new iMac. I setted near to zero the volume and tried to reboot without submitting an answer to developer's question. The system told me Psst prevented to relaunch. I tried to quit it, but it refused. I was forced to a forced quit. So I relaunced and I answered it didn't work. Then I CLOSED the submitting window and, surprise, relauncing again I discovered it works. After many attempts I can confirm that it works flawlessly. The problem is all in that window! It's impossible to submit before trying. It should have a short time persistence then automatically disappear. Add iMac 2,66 GHz Intel Core 2 Duo with OsX 10.5.5 to compatible Mac list.

i upgraded to iLife '08 and then my sound stopped working... internal speakers were not listed in my sound preferences. during the iLife install the machine deleted some of my system caches. i uninstalled Psst & the sound came back... could have been a coincidence but if someone else has the same combination maybe removing may be worth a try. i didn't try to re-install it.

Started using Psst 2.1 in June 07 - worked fine for a couple months. Then stopped working. Trashed it and downloaded again, and again it worked fine till yesterday. Trashed it and downloaded 2.1.1. So far, no joy. Intel iMac 1.83 GHz, OS/X 10.4.10

This software is great. Thanks a lot to his autor. Works fine on a MBP and iMacG5.