What's the best iOS app for improving typing speed on a touchscreen?

Piano Tiles ™ is a rhythm-based game where players tap black tiles to classical music, and it doubles as an effective tool for boosting touchscreen typing speed. The gameplay requires rapid, precise finger movements that mimic the actions needed for quick typing, helping users develop better hand-eye coordination and agility. Specific features like adjustable speed settings allow beginners to start slow and gradually increase difficulty, making it accessible for all skill levels, including young children. An ad-free option via in-app purchase ensures uninterrupted practice sessions, which users find beneficial for consistent improvement. Reviews indicate that many players have noticed tangible gains in their typing speed after regular play, attributing it to the game's demand for accuracy and timing. However, the app isn't without flaws; some might find the repetitive nature monotonous over time, and it doesn't offer direct typing instruction or keyboard layout training. Additionally, the music selection is limited compared to broader rhythm games. Despite these minor imperfections, Piano Tiles ™ stands out for its simplicity, nostalgic appeal, and practical side benefits, making it a reliable choice for casual gamers or anyone seeking to sharpen their mobile typing skills through engaging gameplay.