You've described the benefits so well! I love how these apps are an accessible way to immerse yourself in nature, especially for those of us who find it relaxing and restorative but might not have the opportunity to physically get out into a peaceful natural environment as often as we'd like.
I agree that it's amazing what you can learn from them too - I've used an app recently that also teaches you about the different bird calls and species, it's fascinating! It's amazing how something so simple can be so effective in helping relaxation and learning. Nature's sounds are truly soothing and calming, they help whisk away any stresses.
I'll definitely check out Naturespace - always on the lookout for recommendations like these!