Ranchero SpotLight
Back in the ’90s I shipped SpotLight, a search engine that ran on Macs running WebSTAR (http server), FileMaker Pro (database), and UserLand Frontier (scripting system).
It was the closest thing I had to success at the time, but it was still a failure. It sold just 10 copies.
But it was 10 copies at $99 each, and people paid with a check, so I made exactly $990.
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It seems like such a small and cute amount of money. But it occurred to me just today to figure out how you’d get there on the iOS App Store.