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AI study companion with crowdsourced notes for students.

Knowunity is a mobile-first learning platform where students access crowdsourced study notes, flashcards, quizzes and practice tests, alongside an AI tutor called SchoolGPT that answers subject questions and explains problems step by step. Founded in Berlin in 2020, it covers 20+ subjects across 15 countries and is free to use, monetizing through optional premium features. The app reports 20M+ students.

Gamified AI study app that turns your notes into flashcards and quizzes.

Gizmo is a mobile-first study app that turns notes, PDFs, slides, and YouTube videos into adaptive flashcards and quizzes built around spaced repetition and active recall. It wraps studying in game-like mechanics — daily lives, streaks, and bite-sized quizzes — to make revision feel closer to a social app than a textbook. Used by more than 13 million learners across 120 countries, it targets exam prep from GCSEs and A-levels to AP and college courses. A free tier covers daily quizzes and limited tutoring, with paid plans unlocking unlimited use.

Turns lectures, PDFs and videos into notes, flashcards, quizzes and podcasts.

Turbo AI is an AI study assistant that converts lecture recordings, PDFs, slides and YouTube videos into structured notes, flashcards, quizzes and audio summaries. It preserves technical formatting for math, chemistry and code, and includes a chatbot that answers questions about your uploaded material. Notes sync across web and mobile, and a free tier lets students try it before subscribing.

An AI tutor that turns your study materials into lessons.

YouLearn ingests PDFs, YouTube videos, slides, lecture recordings, and notes, then turns them into summaries, flashcards, quizzes, transcripts, and audio podcasts — plus a tutor you can chat with that answers grounded in your own material. It runs on the web and as native iOS and Android apps, with a free tier (capped daily chats and uploads) and paid Pro and Max plans.

AI tutor that teaches step by step on a whiteboard.

Studdy is an AI tutor app whose ‘Studdy Buddy’ guides students through problems one step at a time on an interactive whiteboard, using voice, text and image recognition. Students snap a photo of an assignment or upload study materials, then get personalized 1:1 lessons across math, science and other subjects and can interrupt with questions anytime. It runs on iOS, Android and the web.

Notes, PDF annotation, and spaced-repetition flashcards in one AI study app.

RemNote combines outliner notes, PDF annotation, and spaced-repetition flashcards in a single app aimed at students. Its built-in AI generates quiz questions and flashcards in one click from your notes, PDFs, or lecture transcripts, then schedules reviews with a spaced-repetition algorithm. Works offline across web, desktop, and mobile.

AI reading tutor that listens to K-12 students read aloud and coaches in real time.

Amira is an AI-powered reading assistant that listens to students read aloud, assesses fluency, flags errors, and delivers one-on-one tutoring in real time — combining dynamic assessment, lesson planning, and tutoring in a single system. Grounded in the science of reading and used by school districts across more than 15 countries, it offers an English/Spanish bilingual edition (Amira Lectura).

AI learning companion atop a community homework-help platform.

Brainly is a global learning platform where students get homework help backed by a moderated base of community and expert answers. It layers AI on top of that knowledge base — an assistant named Ginny that simplifies, expands, and personalizes answers across school subjects and grades. The free Q&A community is supplemented by a paid Brainly Plus tier.

AI that adapts reading materials to any level for teachers.

Diffit lets teachers paste a topic, article URL, or YouTube link and instantly generates leveled reading passages with summaries, vocabulary, and comprehension and discussion questions. Outputs can be set to different reading levels and 100+ languages, then pushed straight to Google Classroom. Free for individual educators, with paid Pro and school/district plans.

AI builds interactive, discussion-driven lessons that teachers run live with their class.

Curipod is an AI lesson-building platform for teachers: enter a topic, grade level, and objective and it generates interactive slide decks with polls, word clouds, open questions, and drawing prompts that students answer live on their own devices. It gives real-time AI feedback on student writing and produces participation reports, aiming to drive classroom dialogue rather than passive viewing. Built for K-12 classrooms, it offers a free tier plus school and district licenses.