Soft, steady rain on a window under a free focus timer.
Or pick a length
UnderneathPlays in Cabin, with fireplace and wind sounds.
What it sounds like
A recording of soft, steady rain on a window: no thunder and no downpour, just an even patter that never builds to anything. It has no rhythm or melody to follow, so it fills the space where other noise would be without asking for your attention.
What it suits
Rain is the classic sound for shutting out a busy room, a shared office or a neighbour's television, and it sits well under reading, writing and study. It is gentle rather than loud, so on its own it will not drown out a conversation right next to you.
Scenes with rain sounds
Free scenes come first; the Premium ones are in the Timer AI app for iPhone.