4 apps to share iOS, Android and Windows files

As a child-free, married couple in our late 20s, when my husband and I aren't asking the other what we should have for dinner, we're sharing videos and pictures of our 5-year-old tuxedo cat. But when my husband moved to Android -- and left the iMessage cult -- we found that sharing multiple images and videos isn't easy. And because waiting for Apple to open up iMessage to other platforms feels like a "when pigs fly" situation, I took to the App Store to find an easy way to share gigabyte upon gi