Here's a collection of over 10 set of free mobile app UI PSD Files, thanks to the various creative designers.
In this post, you'll find various UI elements for iOS and android mobile apps, which can help you create your own designs easily using these free PSD files. They are editable files and hence you can easily change the colors and elements to fit your app needs.
While using the resources, I request you to respect the authors of the freebies and credit them where possible and share this post to honor them. Thanks much!