Tubi is another great app that allows you to download movies from various sources. This app has a category for "Not on Netflix" content. You can easily download movies from this app to your device, and watch them in high-quality, with subtitles included. Tubi also has a dedicated section for children's content. While there are other movie streaming apps, you can find the best options for free movie apps for smartphones and tablets using the methods discussed in the preceding paragraphs. Yidio.com is not an app that actually offers streaming videos but it is an excellent search tool. Yidio lets you search over 300 services and suggests content for you to watch. While you may have to watch a few ads to use the app, the content is generally free and legal. While it has ads, it's easy to use and works very well. With these free apps, you can watch movies from all over the world at your leisure.