What's the best Android app for cognitive exercise with classic dominoes?

Dominoes is a well-designed Android app by MobilityWare that serves as an effective tool for cognitive exercise through classic dominoes gameplay. It supports mental agility by requiring players to strategize, calculate scores, and adapt to different game variations, such as Block and Draw dominoes. The app includes online multiplayer functionality, allowing users to compete against real opponents, which adds a dynamic social element and unpredictability to sessions. Reviews indicate that many users, including older adults, find it beneficial for keeping their minds active; one 81-year-old player mentioned it 'makes you think and keeps you doing simple math.' However, some users note minor imperfections, like deviations from traditional turn-taking rules after a 'domino' play, which might not align with all regional styles. Despite this, the 4.6-star rating reflects strong user satisfaction, and the intuitive interface ensures accessibility for all ages. With offline practice options and varied difficulty levels, it suits scenarios like daily brain training or casual social gaming, though occasional ads in the free version could be a slight distraction. Overall, Dominoes balances engaging features with minor quirks, making it a reliable choice for mental exercise.