Looks like a good file manager but there is no option to back up files or settings anywhere that I've seen, despite the claims that it supports backups. The website's faq page doesn't load for me and the independent tutorials I've googled for Astro all say to swipe to the side, but when I do this nothing happens. I'm not sure if the app changed recently and now all the information is outdated? But the description that you can back up with this app is not true.