[bsder]

Agreed. Without source code, this is just Yet Another Guitar Tuner App(tm) this time with Magic Rust Pixie Dust(tm) (take our word for it).

If they release source code, I'll toss them money. Until then, pass.

[elecush]

"toss them money" ? i'm confused. Also, if you view-source you can see some boilerplate that strongly suggests it's flutter