Android operating system is an operating system that we all know and love, and it is the most used open source system in the world.Android operating system is an operating system that we all know and love, and it is the most used open source system in the world. Android operating system, which is based on Linux and java, offers users a safe and comfortable experience with its customizable structure and increasingly secure structure. Leaving the bulky and swollen structure in the early days, especially after the Android 6.0 Marshmellow version, Android introduced us to a stable and fast system. Unfortunately, we cannot use this operating system, which is the most widely used in the world, as effectively as necessary. In this article, we will present you the tricks that tell you how to use the Android system effectively. Developer options; It is possible to encounter many advanced options in this secret mode, which is not known to many people. However, the options I will present here are related to menu effects. To enable this mode, Settings - Device Settings - Software Information - Build Number path can be followed. When you click the build number text 3-4 times in succession, developer mode is activated. When you exit settings completely and re-enter, you will also see developer options. By choosing the window animation setting and the animation off option in the options below, you can waive the visuals and provide fast menu transitions. Alternatively, you can achieve a fast and effective transition with the 0.5x setting. It is also possible to set the background processing limit in this menu. For example, if you want only 3 programs to run at the same time, you can set this number to 3. Another setting is to use GPU support in Imaging - The option to force GPU imaging also speeds up menu transitions to some extent. Memory cleaning; It is a fact that the device swells with internet usage and program downloads. Therefore, it slows down. To prevent this, we strongly recommend you to clean both ram and memory with programs like Clean master, Ccleaner. Not leaving open applications in the background; Especially, applications such as Facebook, Messenger and WhatsApp run once in the background and cause your battery to run out quickly. To prevent this, you can go to force stop these applications from the applications option. In this way, you will not only receive unpleasant notifications, but also protect your battery. Introducing an application that can do this for you automatically, “Greenfy” This miracle program automatically closes the applications that are in the background with a shortcut that you add to the desktop, and saves you a great deal of trouble. Protect your eyes; Applications such as f.lux, which reduce the white light on the screen and increase the color temperature, are available on the market. These applications help you protect your eye health and reduce the fatigue in your eyes.