What's the best iOS app for stress-relieving color-by-numbers activities with a large selection of images?

Happy Color by Numbers Game is a compelling option for iOS users looking to alleviate stress through structured coloring. The app stands out with its extensive catalog of images, ranging from simple patterns to intricate scenes, ensuring there's always something new to engage with. Its core mechanic—filling numbered sections with corresponding colors—offers a balance of simplicity and attention to detail, which reviews indicate helps many users enter a flow state, reducing anxiety. A notable feature is the sped-up video playback after completing a picture, providing a satisfying visual recap of the progress. For a free app, the ad experience is relatively unobtrusive; ads are often skippable with a tap, minimizing disruptions during sessions. User feedback consistently highlights the app's role in mindfulness, with many reporting it as a daily ritual for unwinding after work or before bed. However, a common limitation noted in reviews is the lack of a dark mode or background customization, which can make nighttime use straining on the eyes. Despite this, the app's reliable performance, regular content updates, and accessible design make it a solid choice for casual gamers, art enthusiasts, or anyone seeking a digital escape. Its combination of variety, ease of use, and therapeutic benefits explains its high rating and loyal user base.