Can’t share as audio file – Piano+ - Sheet Music Composer Review

I paid $20 for the app and it doesn’t even let me share as an audio file after the music I compose. It states I can share it. It lets me send it as a midi file for audio, but then does nothing. You can’t open it up to listen to it. It’s very disappointing and not worth the money unless the can fix that issue. It would be greatly appreciated if someone got back to me on this.
Review by DoctorWho123121 on Piano+ - Sheet Music Composer.