[jslabovitz]

The app costs $35. I presume this is a workable business for the developer, and therefore little economic incentive for data collection or other backdoor/nefarious tactics.

I'm much less trusting of free software like most ad-blockers where I have to wonder how they're really making their money.

[beardog]

It depends what you mean by "free". Of course all software should be handled with varying degrees of skepticism, but open source software can be directly verified (though this also requires building from source), and you don't have to just hope that the author was honest.

[tedmiston]

They've also been on the Mac for 10+ years.

[leejoramo]

Objective Development were there from the very beginning of Mac OS X.

And prior to that, they were a well known developer for NeXT. Their LaunchBar app originated on NeXTSTEP.