I had never heard of iReal before and just checked it out. Not as powerful as BiaB but at just £13.99 here in the UK was worth buying. As KeithR said, it costs an awful lot of money to keep up to date with BiaB, I am already close on £1000 and for almost 3 months it just does not work properly. While I do really love BiaB I am very disappointed that a fix is taking so long. I certainly will not be in a rush to upgrade to 2021 when it is released, as the saying goes Once bitten twice shy.
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M1 iMac 24” 2021 - Monterey 12.0.1

BiaB UltraPak+ 2021 Mac, (515) + pretty much everything extra.
Yamaha SLG200N - Nektar Impact LX49+ - Logic Pro X - 10.7.1