"Fluid 2" is an interactive liquid simulator for iPhone and iPod Touch. Developed by Fabien Sanglard, this free lifestyle application is perfect for relaxation and keeping kids entertained.

The app allows you to turn the surface of your device into an interactive liquid, creating a mesmerizing visual experience. With a simple touch, you can create ripples and waves that mimic the behavior of real water.

One of the standout features of "Fluid 2" is the ability to make a wish by throwing coins into the water. This adds an element of fun and interactivity to the experience. Additionally, the app offers an optional zen music soundtrack to further enhance the calming effect.

Users have the flexibility to customize the water's viscosity and color to their liking. The option panel, which provides access to these settings, is hidden by default but can be accessed at any time by pressing five fingers on the screen.

Another notable feature of "Fluid 2" is the ability to import any background from the photo library or camera, allowing users to personalize their liquid simulation.

Overall, "Fluid 2" is a visually stunning and relaxing application that offers a unique and immersive experience. Whether you want to unwind or keep the kids entertained, this free app is definitely worth a try.