what is the best free sw and hw diagnostic apps for 2013 imac

[lamarpismo]

there used to be one named "ester" or similar ...wondering if it is still in play if not what is.thanks...got some gremlins in my safari on one machine not on others...!!!??? thank you

 

[Fishrrman]

Are you thinking of "EtreCheck" ??

 

[lamarpismo]

yes. thank you, finally came up with it.....recall isn't working as it should....thnx