I have tested this app on the Galaxy Y and it runs smoothly. After monitoring it for a bit I've noticed it uses around 22MB of your RAM.
In the video below I am demonstrating you the live wallpaper in action and those of you who like it may download it from the link I have provided below the video. Some more information on the GYA rom has also been included at the end of it.
Galaxy S4 Live Wallpaper is developed by Kiwi.
Get Galaxy S4 Live Wallpaper - Play Store
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