What about apps that spell out the pitch for you (like guitar/instrument tuners), or even translate it directly to spoke tension? e.g. https://apps.apple.com/g

What about apps that spell out the pitch for you (like guitar/instrument tuners), or even translate it directly to spoke tension? e.g. https://apps.apple.com/gb/app/spoke-tension-gauge/id518870820 https://apps.apple.com/gb/app/spoke-tension-gauge/id51887082...