I haven't used iTunes for a long time. I use iCloud to backup my iPhone. and when it comes to transferring media files to my iPhone, I try to avoid using it as well. The application's interface is bad. Anytime I want to sync music or video, I need to get on Google and search for some tutorials.
I use Ezvid. Your video won’t be watermarked, and you can record for up to 45 minutes uninterrupted. The software will add a brief splash at the start of your recording by default, but you can right-click and delete this via the project window.