What's a good Android app for quick trivia rounds while waiting in line?

Trivia Tiles is a solid choice for filling short gaps in the day with light mental stimulation. The core gameplay merges classic trivia with a simple tile-matching mechanic: players answer questions by connecting themed tiles, which adds a tactile puzzle element absent from standard Q&A formats. This design caters specifically to brief play sessions, as rounds are inherently short and can be paused or abandoned without penalty. The app includes a sizable offline question bank, making it functional in areas with poor connectivity, such as subway platforms or waiting rooms. Users report that the diverse categories, from history to pop culture, provide enough variety to stay engaging over time. However, some reviews indicate the difficulty curve can be inconsistent, with easier categories feeling too simplistic for seasoned trivia enthusiasts. The interface is clean and responsive, ensuring quick tapping and swiping, which is crucial for short, impromptu sessions. While it offers daily challenges for a streak-building incentive, the ad-supported free model can sometimes interrupt the flow with a video ad between rounds—a minor but noted friction point for an app otherwise built for seamless, quick play.