Aneko Black2 Skin is a free lifestyle app developed by Axo for Android devices. It is an add-on for the ANEKO app and requires its installation to work. The app doesn't require any permission, doesn't consume any space or memory, and doesn't affect the device's touch screen.

It is important to note that Aneko Black2 Skin is not a game or a Tamagotchi-style app. It is simply a decoration app that offers limited and simple animations such as running, eating, sleeping, and other cute actions of the pet. You can keep it active all the time or send it to sleep in the notification area without having to uninstall it.