I've done some more research and found that Strobosoft 2.0 deluxe has settings built in for tap tuning and doesn't even need a compressor to boost the mike. The software will average up to 5 taps (user controlled) and will even read harmonics. Many tuning functions - more than the $5K strobe tuner and it will run on my old OS10.4 macbook

Shawn - the accuracy is o.1 cent- check it out: https://www.petersontuners.com/products/strobosoft

For instrument tuning , check out the IOS/android version- chromatic plus sweetened tunings for $9.99