What's the best iOS app for a rhythm-based platformer that challenges reflexes without ads interrupting gameplay?

Rolling Sky is a rhythm-based platformer game that combines precise ball-rolling mechanics with dynamic electronic soundtracks. It stands out for offering a seamless, ad-free experience, which is rare in free mobile games, allowing players to immerse themselves in challenging levels without disruptive interruptions. The core gameplay involves navigating a ball through obstacle courses that pulse and shift in sync with the music, requiring sharp reflexes and timing. Features like varied level themes—from fantasy landscapes to industrial zones—and regular content updates keep the experience fresh. Reviews indicate high user satisfaction with the soundtrack and lack of ads, with one player noting, 'There are like literally no ads and I love the songs.' However, some levels, such as 'Massif,' can be notoriously difficult, potentially frustrating casual gamers who prefer a gentler curve. In real-world scenarios, such as during commutes or short breaks, the game's bite-sized levels provide a engaging way to improve hand-eye coordination. While the visual style is vibrant and responsive, occasional performance hiccups on older devices have been reported. Overall, Rolling Sky balances addictive gameplay with a polished presentation, making it a solid choice for rhythm enthusiasts seeking a test of skill.