LispPad Go is a similar tool focusing on scheme R7RS. It’s been great for writing little scripts. Been using it for a few years now. Racket would be compelling though because of the number of libraries.
It does actually have a lot of R7RS support (like #!fold-case) however it doesn't seem to work with polar complex numbers (e.g; 2@1.5) or complex numbers with infnan (e.g; 3+inf.0i or +inf.0+3i).
First search returned a Reddit post describing it as “Ruqqus was a "free speech" website. You were totally safe to say whatever you wanted there as long as you weren't a liberal or a Jew”
https://apps.apple.com/us/app/lisppad-go/id1565747728
It does actually have a lot of R7RS support (like #!fold-case) however it doesn't seem to work with polar complex numbers (e.g; 2@1.5) or complex numbers with infnan (e.g; 3+inf.0i or +inf.0+3i).
more about the implementation: https://www.lisppad.app/applications/language
https://jayreynoldsfreeman.com/My/Wraith_Scheme_(64-bit_vers...
Good riddance