This question-based game is simple to play, informative, and like a number of trivia challenges, can be captivating -- the built-in ads are really the only major issue. Trivia: Brain Box Quiz's design is pretty simple: Kids click on a ""Reveal Choices" button after reading each question, and then choose one of four response options. If they select the correct one, they'll hear a ding and see a bit more information about the topic. If they don't, they'll still see that content -- just with a red thumbs-down icon. If they get stuck, they can click on a button to use a hint, which will eliminate two of the possible responses, but they'll earn less points. You have 20 seconds to choose an answer. If kids feel the timing aspect adds too much pressure, they can change the app's settings and switch to an untimed zen mode.
The app doesn't offer any huge rewards to incentivize play -- self-improvement has to be the main motivation. The wide range of topics that the questions cover helps keep things interesting, though. One question might involve a Taylor Swift song, and the next may touch on geography. As a result, kids probably will come across some subject matter they aren't familiar with and just have to guess -- but the additional explanation they receive, whether they choose the right or wrong answer, makes it feel like they've at least learned something. After answering the tenth question in the round, kids will be forced to watch a fairly long ad before seeing their final score. That step can be a bummer -- it slows the gameplay to a halt, and you can't click out of that screen for quite some time, even if you don't want to see your score and are just hoping to continue playing. Since the $1.99 paid version of the game, which removes the ads, is fairly inexpensive, kids may end up wanting to purchase Trivia: Brain Box Quiz just to avoid that part of the game -- and be able to play without interruptions.