Blowfish - Live Wallpaper is a personalization application developed by freenet digital GmbH for Android devices. The program is a live wallpaper that displays a small blowfish swimming around on your screen. If you tap on the blowfish, it will react with a small animation. However, it's important to note that this is only a demo version, and an overlay will appear after two hours of usage.

It's worth mentioning that not all Android devices support live wallpapers, so it's important to check compatibility before downloading. Overall, Blowfish - Live Wallpaper is a simple and cute way to personalize your device's home screen.