What's a good Android app for daily word puzzles that provide a mental workout without being overwhelming?

Word Tour is a standout choice for users seeking daily word puzzles that balance challenge with accessibility. The app features a variety of puzzle types that require logical thinking and vocabulary skills, designed to be completed in brief, focused sessions. Key elements include a progressive difficulty system that ramps up complexity without becoming frustrating, and a hint mechanism that assists when players are stuck—preventing burnout. Users report that the fast-paced gameplay avoids unnecessary distractions like mini-games or overly cute graphics, keeping the experience streamlined for mental stimulation. For instance, someone on a coffee break can tackle a few puzzles to sharpen focus, while consistent play helps maintain cognitive agility over time. However, some reviews note that the hint system has limited uses per day unless players watch ads or make in-app purchases, which might interrupt flow for heavy users. Despite this, the app's design supports regular use without feeling tedious, making it a reliable tool for daily brain training. Its 4.7-star rating reflects broad satisfaction, with many praising how it integrates mental exercise into busy routines.