Useless in current version

This is a terrific idea for an app. Really truly, especially if it can generate and display gradual sunset-like lux levels. However, being required to leave the phone on and unlocked all night, and to leave the app open is absurd. What if the basic iPhone alarm required you to not use any other programs and to leave your phone on all night long on the alarm menu? Until this is fixed, the app is useless.
Also, $1.99 just to use your own music? Maybe, maybe understandable if the app were free, but seeing IAP like this is absurd.

phil2k about Suno, v1.0.1