Rotation Lock is a free Android app developed by 50gNut Studio in the Utilities & Tools category. It is a useful orientation manager for both phone and tablet devices, allowing the user to lock the screen orientation to landscape or portrait mode for all apps. With this app, you can easily change the orientation to portrait, portrait reverse, landscape, or landscape reverse, making it extremely helpful when reading on a tablet, such as Amazon Fire.

The app is simple to use and provides a convenient way to manage your device's screen orientation. Whether you're watching a video or reading a book, you can easily lock the screen orientation to your preferred mode and enjoy a seamless viewing experience. Overall, Rotation Lock is a must-have app for anyone looking for an efficient way to manage their device's screen orientation.