you know on home keyboards (eg Yamaha and Casio) where they have a feature that if you play a C note it generates a full C chord and if you play a C note plus a black key below it you get a C Minor etc.
They all basically do the same thing with respect to single-finger chords, but I think Scaler provides the best overall feature set. InstaChord's sister VST InstaScale does some cool things similar to Scaler, but different enough that I use both.
Too bad you just missed a great deal to get both InstaChord and InstaScale together for around $10 last week.
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Best Regards, Ernie "lunker" Lundqvist
BDSM (Bad Dog Studio Musicians)
Windows 10 running on Z390 + i7-8700
Instachord is more like 2 finger chords: One finger to select the chord, the other to "strum" it. It's neat but I confess I've never used it seriously.
By the way, I've seen Instachord on sale for $10-15 three or four times in the last year or so. If that's the one you want (or anything else by that developer) just wait a little while and you'll get it for cheap.