iPhone users and those with other iOS devices who want to get their media files onto their gadgets without getting frustrated enough to throw them against the wall have a way to avoid that darn iTunes program all together. And, at least to me, that's a really good thing.
There is a number of ways you can do this, getting files onto the device directly, and I found a good one that's easy to use and, mostly, works very well.
It's called WALTR2 which, perhaps not too surprisingly, is the sequel to WALTR, which I've never tried. And I used it to get nearly 128 gig of my music onto my iPhone! And more.
I came across WALTR2, which is from Softorino, doing a web search for just such a product. It was made necessary by my dear wife buying me a refurbished unlocked iPhone 7 for my birthday, after she watched me spend the last year cussing at the cheap unlocked Android phone I'd bought because it was cheap and unlocked and because, with Android, you can add memory instead of (as with Apple) having to buy the capacity you want up front.