Uben is a free online spaced repetition learning platform that helps you master any subject. Create custom flashcard decks, import decks from Anki, and study languages, sciences, coding, history, and more with smart review scheduling.

What subjects can I learn with Uben?

Uben supports learning any subject through spaced repetition. You can create custom decks for languages, sciences, coding, history, mathematics, and more. Anki import is available for Arabic, Chinese, English, French, German, Hebrew, Japanese, Korean, Russian, Spanish, Hindi, Turkish, and other languages.

How does spaced repetition work in Uben?

Uben uses intelligent spaced repetition algorithms to optimize your learning. Cards are shown at increasing intervals based on your performance, helping you remember information more efficiently. The system tracks your progress across all devices.

Can I import my existing Anki decks?

Yes! Uben supports importing Anki decks (.apkg files) for 10+ languages. You can also export your decks to KAnki format for studying on jailbroken Kindle devices.

Yes, Uben is completely free. There are no paid tiers or subscription fees. All features including custom deck creation, Anki import, progress tracking, and community marketplace are available at no cost.

Best Flashcard and Spaced Repetition Apps of 2026

Published on 2026-07-01 • 8 min read • App Reviews

The best flashcards apps of 2026 ranked for students and self-learners: features, pricing, and who each one is actually for.

What Makes a Great Flashcard App in 2026

The best apps today are judged on four things: scheduling quality (FSRS has become the standard), ease of deck creation and import, multi-device access, and price. A modern flashcard app should feel effortless to open every day, not like an obligation.

Uben — Best Free All-Subject Platform

Uben is a free, browser-based SRS platform for any subject. It ships with FSRS scheduling, custom decks, Anki .apkg import for 12+ languages, community marketplace, and a unique KAnki export that lets you study your decks on a jailbroken Kindle. There are no paywalls and no subscriptions — a genuinely free alternative to paid apps.

Anki — Still the Powerhouse

Anki remains the most customizable and data-rich option, with huge shared decks and plugins. Its cost is hidden in complexity: a dated interface, a learning curve for new users, and less adaptive defaults. If you want maximum control and are comfortable with setup, Anki is unmatched — and its decks import cleanly into Uben when you want a nicer interface.

Other Contenders

Apps like AnkiApp, Quizlet, and Brainscape each have strengths: Quizlet is great for quick class-based decks, Brainscape has polished content, and AnkiApp offers convenience. But they either lack adaptive FSRS scheduling, require subscriptions for basic features, or are weak outside their niche. For a free, modern, any-subject experience, Uben is hard to beat.

Choosing the Right One for You

Match the tool to your goal. Language learners who want daily vocabulary practice, students who study multiple subjects, and anyone who finds Anki intimidating should try Uben first. Power users who need plugins and granular control will still find a home in Anki. The best flashcard app is the one you actually open every day.