#noisly — Public Fediverse posts

I once had a great Android app called #noisly which was able to play back smoothing #sounds like coffee bar, ocean, wind, rain, train, ...

Offline, no subscription, flexible, I could save favorite mixes.

Is there something like that? I'd love to pay for it but not a recurring subscription fee.

I've found #noice but downloads only work with subscription.

Any recommendations?