Thanks! It's one of the few side projects I've actually followed through on releasing. There are hundreds of similar products (Noisli, A Soft Murmur, myNoise, tons of apps) which is usually why I lose interest but I hubristically thought I could build something better, or at least different enough that people would be interested, or free enough that people would be able to overlook any missing features.

I guess lots of competition means there's definitely an audience for it at least.