Hello HN,
Over the last 15 months, two friends and I developed the music recording app we felt we wanted based on our own needs as musicians. It's called Tape It [1] and has just recently hit the Apple App Store [2].
We put a lot of effort into a good UX to help musicians really focus on playing their instrument instead of pretending to be a recording engineer. The app records in stereo on newer iPhones (although that's a premium feature; the free version only records in standard mono audio quality).
I would be really grateful for advice from this community on how to best approach marketing. We had a great TechCrunch article covering our launch [3], and we posted it on various music websites. Turns out advertising on Google or Apple Search is a dark art, though. We have some good ideas for developing a good social media presence, but they will take time.
Please hit us with feedback, opinions and advice that you think a young indie company like us can use at this point :). And of course, please go and try the app!
Best,
Thomas
[1] https://tape.it
[2] https://get.tape.it
[3] https://tcrn.ch/3nbODHD
Also, as others have said, I would never consider paying until I could try it out in a full-featured way, and I definitely would not pay for yet another subscription service for something that is so dead simple. Especially not $20/yr. If I want to shell out that kind of coin, I can just use a Zoom H4n and own the device myself and have a lot more features, better mics, etc.
I do wish you well, though!