Solitaire Angel - Card Puzzle enters the crowded Android card game market as a free, ad-supported title that blends traditional solitaire mechanics with aesthetic rewards. Developed by Ali Al-akwa'a, it distinguishes itself through animated GIF and MP4 backgrounds, targeting players seeking a relaxed puzzle experience without competitive pressure. The app maintains a 4.5-star rating, reflecting generally positive reception despite some interface quirks. Core functionality revolves around standard solitaire gameplay where users clear cards from a tableau, with no time limits or scoring pressures. A key feature is the reward system: winning a round unlocks a background image, typically an artistic depiction, which users can view or download after watching advertisements. This collection mechanic adds a layer of engagement beyond basic card matching. The app operates on an ad-supported model, with optional ads for securing rewards, though it remains fully playable without mandatory interruptions. In real-world usage, the interface is designed for simplicity, with drag-and-drop controls for card movements. However, user experience is marred by a reported issue with a hidden toolbar that often fails to respond, particularly for undo actions. Reviews indicate that tapping the undo button frequently causes the toolbar to disappear, disrupting gameplay flow. Additionally, some users note significant battery drain during extended sessions, a common trade-off for animated backgrounds. The ad integration is generally unobtrusive, with ads primarily tied to reward claims rather than forced viewing. User feedback trends highlight consistent praise for the visual elements and relaxing nature. Multiple reviews commend the 'great visuals' and 'live girl backgrounds,' with one user stating it's a 'wonderful relaxing solitaire game.' Criticisms are narrowly focused on the toolbar problem, exemplified by a review noting, 'the toolbar disappears and it does that over and over.' This suggests a specific UI flaw that, while not pervasive, affects usability for some. The reward system is well-received, with users appreciating the optional ad watches for background collections. Overall, Solitaire Angel offers a competent solitaire variant with unique visual incentives. Its strengths lie in the casual, timer-free design and engaging collection system, making it suitable for brief, distraction-free play. However, the toolbar responsiveness issue presents a notable limitation that could frustrate users reliant on undo functions. For those prioritizing aesthetics and relaxation over flawless UI, it remains a viable option in the free card game space, though future updates would benefit from addressing the interface bugs.