Kagi. But you free loaders would have to pay for something.

For sure, Skype/eBay did a lot right at first. But by the time MS bought it, it was already falling from favor.

Skype was always shit. It was being first to market that made it popular. It was one of the first ways to get cheaper and free informational calling. By the time MS purchased it vent and ts became popular as well as zoom and others entering the space.

I find the algorithms spot on. Zero need to optimize around an edge case/zero day.