Third party patching software for mobile?

I realize this isn't strictly a Unity question, but I've been trying to find a way to update my game with patches, instead of requiring the user to download the entire thing again (which, for mobile, can get pretty annoying). I thought AssetBundles would work, but then I saw that you can't update script with them. After much research I've found that there doesn't seem to be a good way to patch a game through Unity without developing custom code, and I'm certain I'm not the only person who could use this feature. I've seen lots of posts on here asking about it and being redirected to third-party software, but that has always been for Windows or OSX, and the games I need it for will be on iOS and Android. So does anyone have any recommendations for third-party software or other methods to patch my game on mobile?