What's the best iOS app for teaching piano to young kids with no prior experience?

Loog Piano is designed specifically to introduce young children to the piano. The core approach centers on a color-coded note system where each key on the virtual keyboard is tied to a specific color. This visual aid helps children bypass the immediate complexity of traditional sheet music, allowing them to play recognizable tunes like 'Twinkle, Twinkle, Little Star' or 'Happy Birthday' within minutes. The app integrates the learning method used in Loog's physical guitars, focusing on play-based learning. Games and challenges encourage rhythm and note recognition without feeling like formal instruction. For practical use, parents can set up an iPad, and a child as young as four or five can follow the colorful falling notes to create music immediately. Reviews indicate this method builds confidence quickly. However, the app's song library, while curated for quality, is not as vast as some adult-focused platforms, and advanced progression requires a subscription. It excels at its primary goal: serving as a gentle, encouraging first step into music rather than a comprehensive piano course.