10 Best Flashcards & Spaced Repetition Tools in 2026

Duolingo is a popular language-learning platform designed to make acquiring new languages engaging and accessible. It offers a gamified experience with short, interactive lessons that cover vocabulary, grammar, listening, and speaking skills. The platform is suitable for beginners looking to start a new language, as well as intermediate learners wanting to practice and improve. Key benefits include its user-friendly interface, diverse range of languages, and a progress tracking system that motivates users to continue learning. Duolingo aims to make language education free and fun, helping millions worldwide achieve their language goals through daily practice and structured learning paths.

Lexie is a unique language learning app designed to make mastering numbers and core verb conjugations in French, Spanish, and German enjoyable and effective. Unlike traditional language apps, Lexie focuses on these often-overlooked yet crucial aspects of language acquisition, presenting them in a gamified, tamagotchi-style format. Users care for a virtual pet by practicing daily, earning rewards, and unlocking new features, transforming language practice into an engaging and stress-free experience. The app offers three distinct play modes: Quiz Mode for quick multiple-choice rounds, Voice Mode for pronunciation practice with instant feedback, and Listen Mode for passive absorption of numbers and verbs. Lexie is ideal for a wide range of learners, from kids and teens preparing for exams to adults brushing up on skills for travel or work, and even beginners starting from scratch. It's particularly beneficial for those who enjoy gamified learning and want to build confidence in speaking and understanding numbers and basic verb patterns without the pressure of a full language course. Lexie prioritizes user privacy and accessibility, working offline without requiring an account or login, and is completely free of ads and tracking. While French content is free forever, Spanish and German are available through in-app purchases. The app provides clear audio, step-by-step guidance, and progress tracking without harsh penalties, making it a family-friendly and effective tool for focused language drill.

Readwise collects and resurfaces highlights. Save highlights, review them regularly—spaced repetition for what you read. The collection is automatic. The review is systematic. The learning is reinforced. Serious readers use Readwise to remember and apply what they read.

RemNote is a comprehensive learning and knowledge management platform designed to help students and serious learners save time and achieve higher grades. It integrates powerful note-taking capabilities, including rich text, outlining, and handwritten notes, with an advanced flashcard system based on spaced repetition. Users can annotate PDFs and slides directly within their notes, creating a unified study environment. Beyond traditional study tools, RemNote incorporates AI features such as an AI tutor chat, AI-generated flashcards and quizzes from any source, and AI explanations for flashcards. It aims to build a lifelong knowledge base that scales with users throughout their academic and professional careers, offering features like customizable tables and seamless syncing across desktop and mobile devices, even offline. RemNote is ideal for anyone looking to optimize their learning process, improve retention, and manage information effectively.

Figy.ai is an AI-powered flashcard generator designed to help students, professionals, and lifelong learners create study materials quickly and efficiently. Users can input any text, such as notes, articles, or book chapters, and the AI will automatically extract key information and transform it into interactive flashcards. This tool aims to streamline the study process by eliminating the manual effort of creating flashcards, allowing users to focus more on learning and retention. The platform is ideal for anyone looking to improve their memory and understanding of complex topics. By automating flashcard creation, Figy.ai helps users save significant time, enhance their study habits, and prepare more effectively for exams, presentations, or skill development. It supports a more active and engaging learning experience.

Notability is an all-in-one note-taking application designed to help users not just take notes, but actively learn from them. It combines traditional note-taking with advanced AI capabilities to create an interactive learning experience. Users can annotate documents, record audio during lectures, and create custom templates, making it suitable for students, professionals, and anyone who needs to organize information effectively. The platform goes beyond basic note-taking by offering features like AI-powered summaries, quizzes, and flashcards generated directly from your notes. It also provides real-time transcription and summarization during audio recordings, allowing users to focus on the content rather than manual note-taking. Notability aims to enhance understanding and retention by turning passive notes into dynamic study materials.