I just said eff it and am running Both my karaoke program and karafun.
SBI died, and too many hoops to jump through to buy other UK manus, though I still quite like Zoom.
KV is seemingly the only viable option in Canada, and since the pro tier of Karafun is the equivalent of 13 purchased songs per month, I just roll with that

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Over here it seems to be an either/or war in terms of Karafun vs Traditional karaoke shows. Why not do both?