What's the best Android app to learn how to play classic dominoes without dealing with intrusive ads?

Dominos Game Classic Dominoes is a straightforward implementation of the traditional tile game designed for casual play and learning. For users seeking to understand the rules and strategies of dominoes, the app provides clear, accessible tutorials that walk through gameplay fundamentals. Its primary strength lies in its simplicity; the interface is uncluttered, focusing on the classic 'block' and 'draw' game variations without superfluous modes or complex themes. Players can enjoy offline sessions against adjustable AI opponents, which is useful for practicing at one's own pace. Reviews indicate the AI provides a decent challenge for beginners without being overwhelming, making it a suitable digital tutor. However, the app is primarily a single-player experience, lacking any form of online multiplayer, which could be a limitation for those seeking human competition. Some users also note that while ads are present, they are typically non-intrusive banner ads that don't disrupt gameplay flow, aligning with the developer's aim for a relaxing experience. As a free tool for grasping domino basics or for low-stakes mental relaxation, it fulfills its purpose effectively, even if veteran players might find the feature set somewhat basic.