LearnClash

LearnClash is a quiz duel app for iOS, Android and the browser that pairs head to head trivia with study techniques. Players pick a topic, challenge an opponent 1v1, answer six questions in about three minutes, and read an explanation after every answer. Questions a player misses return after seven days, and again after 90 days once answered correctly, so the game doubles as a spaced repetition system. It suits curious adults, students and friends who want a competitive reason to keep learning. Duels are turn based, with a 72 hour window for each turn, and a player can challenge a friend by link, get matched with another player, or take on one of six AI rivals. Clash, the built in AI tutor, answers follow up questions about any answer. Topics range from general knowledge to hundreds of subjects such as history and space, and players can create their own. Premium adds Solo mode, where a PDF, photos, text, a web page or a YouTube link become practice questions, plus more concurrent duels and more topic choice. A new quiz is published daily and can be played in the browser without signing up. Pricing is published. Free costs $0 and includes rated duels, explanations, review of missed questions and one Solo session a day. Premium is $7.99 per month billed monthly or $59.99 per year, which the page presents as $5.00 per month. It includes unlimited Solo sessions under a fair use limit of 20 an hour, up to 200 follow ups with Clash per 24 hours and 2,000 per calendar month, up to 10 duels waiting on the player's move instead of 3, advanced statistics and extra streak freezes. There are no ads in either tier, and the listing sits under marketing tools although the product is a consumer learning game.