Stay Sharp vs QuestLearner AI

Feed your curiosity in seconds. Stay Sharp delivers fascinating facts and bite-sized trivia, personalized to your interests—right when you want them. Whether you love science, history, art, or just random facts from any field, Stay Sharp keeps your brain engaged and entertained. Stop scrolling aimlessly-start learning effortlessly. Choose your favorite topics, set your notification schedule, and get smart facts delivered daily. It’s fun, fast, and totally frictionless. Why you'll love Stay Sharp: Tailored Trivia – Pick your interests and enjoy content made just for you. Quick & Smart – Learn something amazing in under 30 seconds. Right on Time – Get notified when you choose to. Fun + Learning – Feel smarter every day, without the effort. Perfect for curious minds, lifelong learners, trivia lovers, or anyone who enjoys a daily spark of knowledge. Whether you're on a coffee break or killing time on the train - Stay Sharp makes every moment a learning opportunity. Stay curious. Stay sharp. Download now and turn your screen-time into brain-time. Terms and conditions: https://amanesoft.com/terms Privacy policy: https://amanesoft.com/privacy

Type any subject. Play it. Find out when you'll forget it. QuestLearner AI turns whatever you want to learn — the French Revolution, coffee brewing, Spanish past tense, quantum physics — into an arcade run you actually play. Your champion advances down a neon lane, blocks of ignorance come at you, and every one is a real question. Answer it and a light bar shatters the block. THE FADE LINE This is the part no quiz app gives you. QuestLearner AI measures how fast YOU forget a subject from your own answer history, then draws the curve: where your recall sits today, the day it drops below your bar, and how much a replay right now is actually worth at the date you're aiming at. It goes down while you're away, because that is the honest thing for it to do. BUILT ON PUBLISHED RESEARCH, NOT VIBES The forgetting curve, the spacing schedule and the difficulty controller all come from published work on how memory actually behaves — and the app shows you its arithmetic instead of asking you to trust a black box. DIFFICULTY THAT HOLDS THE LINE Learning is fastest at about 85% correct — hard enough to be worth something, easy enough to keep going. The app watches your rolling accuracy and picks the next question to hold you in that band, and it tells you where you are in it. A WRONG ANSWER COSTS YOU NOTHING No lives. No timers. No waiting nine minutes to play again. No ads, in any tier. Missing a question is how learning works, so it costs you nothing at all. BOSS OF IGNORANCE Every quest ends in a boss made of exactly what you haven't mastered yet. It only falls to a chain of correct answers — so it tests real retrieval, not luck. EARN YOUR CHAMPION Skins, emblems and titles come from things you actually did: a boss cleared, a quest at 80%, a chain of eight, two weeks at your target. Nothing cosmetic is for sale, in any tier. NO DAILY STREAK TO BREAK Progress is measured in rolling weeks against a target you chose. A quiet day costs you nothing. FREE FOREVER Playing and replaying every quest you own, boss battles, the arcade run, the difficulty controller, mastery, the weekly rhythm, the whole Champion Forge, the Fade Line for your three most at-risk quests, and 3 new AI-written quests a day. MASTERY PASS (optional subscription) - Unlimited new quests a day - The Fade Line for every quest, not just three - The horizon planner — set the date you're aiming at and everything re-ranks - Your weak spots, ranked by how likely you are to miss them today - Your whole history and every trend, not just the last four weeks Mastery Pass is $9.99 per month or $59.99 per year, with a 7-day free trial. Payment is charged to your Apple ID at confirmation of purchase. It auto-renews unless canceled at least 24 hours before the end of the current period, and you can manage or cancel it any time in your Apple ID settings. Questions are written by AI from the topic you type, so they can be wrong or out of date. One tap on Report retires any question immediately — and Report is free in every tier, always. Privacy Policy: https://preview.apppublishing.ai/legal/767/privacy Terms of Use (EULA): https://preview.apppublishing.ai/legal/767/terms