Best Free Anki Alternatives 2025: Top 7 Spaced Repetition Apps Compared

Why Are Students Ditching Anki in 2025?

Anki has over 10 million users worldwide, but many seek alternatives due to its steep learning curve and lack of modern collaboration features. The core spaced repetition algorithm is excellent, but the experience around it—the UI, the sync, the mobile app costs—leaves a lot to be desired. In 2025, students want tools that are powerful and pleasant to use.

Over 80% of students using spaced repetition report improved long-term retention compared to traditional study methods. But the tool matters. A clunky interface creates friction, and friction kills study habits. That's why we've tested the top free alternatives to find the ones that actually make studying easier.

What Makes a Great Anki Alternative?

Before we dive into the list, here's what we looked for in every app:

• Spaced repetition algorithm — Does it actually work? SM-2, SM-5, or proprietary?
• Platform availability — Web, iOS, Android, desktop?
• Free tier generosity — Can you actually use it without paying?
• Deck import — Can you bring your Anki decks (.apkg) over?
• Modern UI/UX — Does it look and feel good to use?
• Active development — Is the app still being updated in 2025?

Top 7 Free Anki Alternatives for 2025

1. RemNote — Best Overall Free Alternative

RemNote is the most feature-rich free alternative to Anki in 2025. Its free tier supports unlimited flashcards and basic spaced repetition, making it the standout choice for students who want power without paying. RemNote uses a modified SM-2 algorithm that's been fine-tuned for medical and law students.

Key features: Built-in PDF annotation, collaborative study groups, and a powerful flashcard generator from your notes. The UI is modern and clean—a far cry from Anki's Windows 95 aesthetic.

Platforms: Web, iOS, Android, Windows, macOS, Linux.

Import from Anki: Yes, direct .apkg import.

Verdict: If you want the closest thing to a "modern Anki" that's free, this is it.

2. Quizlet — Best for Pre-Made Decks

Quizlet is more of a gamified flashcard app than a serious spaced repetition tool, but its massive library of user-generated decks makes it invaluable. The free tier includes basic flashcards and the "Learn" mode, which uses a simplified spaced repetition algorithm.

Key features: Huge deck library, multiple study modes (flashcards, learn, test, match), and excellent mobile apps. The interface is smooth and intuitive.

Platforms: Web, iOS, Android.

Import from Anki: No direct import, but you can use CSV conversion tools.

Verdict: Best for quick studying and finding pre-made content, but the algorithm is less efficient than Anki or RemNote.

3. Mnemosyne — The Purist's Choice

Mnemosyne is a completely free, open-source spaced repetition app that stays close to the original SM-2 algorithm. It's lightweight, fast, and has no paid tiers whatsoever. If you want a no-frills, privacy-focused tool, this is it.

Key features: Fully offline, open-source, simple interface, and direct .apkg import. It's the closest experience to classic Anki without the complexity.

Platforms: Windows, macOS, Linux, Android (third-party).

Import from Anki: Yes, direct .apkg import.

Verdict: Perfect for users who want a free, offline, no-nonsense spaced repetition tool.

4. Brainscape — Best for Mobile-First Learning

Brainscape uses a "confidence-based repetition" system that's similar to spaced repetition but with a unique twist: you rate your confidence on a 1-5 scale, and the algorithm adjusts accordingly. The free tier is limited, but the mobile apps are excellent.

Key features: Confidence-based algorithm, excellent mobile experience, and a growing library of certified decks.

Platforms: Web, iOS, Android.

Import from Anki: No direct import, but you can create decks manually.

Verdict: Great for mobile learners, but the free tier is restrictive.

5. Mochi — Best for Markdown Lovers

Mochi is a desktop-first flashcard app that uses Markdown for card creation. It's free for desktop use, with a paid sync service. The spaced repetition algorithm is solid, and the card creation workflow is incredibly fast for power users.

Key features: Markdown-based cards, fast creation workflow, and a clean, minimal interface.

Platforms: Windows, macOS, Linux (web version in beta).

Import from Anki: Yes, via CSV import.

Verdict: Ideal for programmers and note-takers who love Markdown.

6. SuperMemo — The Original Algorithm

SuperMemo is the granddaddy of spaced repetition, created by Dr. Piotr Woźniak in the 1980s. The free version (SuperMemo 18 for Windows) is still available and uses the proprietary SM-18 algorithm, which is arguably the most advanced spaced repetition algorithm ever developed.

Key features: Proprietary SM-18 algorithm, incremental reading, and extensive research backing.

Platforms: Windows (free), iOS, Android (paid).

Import from Anki: No direct import, but you can use conversion tools.

Verdict: For hardcore spaced repetition enthusiasts who want the most advanced algorithm, but the UI is dated.

7. StudySmarter — Best for Collaborative Learning

StudySmarter is a free all-in-one learning platform that combines flashcards, study plans, and collaboration tools. The spaced repetition algorithm is solid, and the social features make it great for group study.

Key features: Collaborative study groups, study plans, and a large library of shared decks.

Platforms: Web, iOS, Android.

Import from Anki: No direct import.

Verdict: Best for students who want to study with friends and need a structured study plan.

Comparison Table: Free Anki Alternatives at a Glance

How to Migrate from Anki to a New App

Moving your decks is easier than you think. Here's a quick guide for the most popular alternatives:

• RemNote: Go to Settings → Import → Select your .apkg file. Done.
• Mnemosyne: File → Import → Choose .apkg. It handles most card types.
• Quizlet: Export your Anki deck as CSV, then import via Quizlet's web interface.
• Mochi: Export as CSV from Anki, then import into Mochi. Markdown formatting may need adjustment.

For most users, RemNote offers the smoothest migration path with direct .apkg support and automatic formatting preservation.

Frequently Asked Questions About Free Anki Alternatives

What is the best free alternative to Anki in 2025?

RemNote and Quizlet are top contenders, with RemNote offering a powerful spaced repetition engine and Quizlet providing a huge library of user-generated flashcards. Both have free tiers with robust features.

Can I import my Anki decks into these alternatives?

Most alternatives support importing .apkg or .csv files. RemNote and Mnemosyne have direct import options, while others may require conversion tools.

Are there any completely free spaced repetition apps without paid subscriptions?

Yes, Mnemosyne and Anki itself (desktop) are completely free. However, many modern apps like RemNote and Quizlet offer generous free tiers with optional paid upgrades for advanced features.

Which alternative has the best mobile app?

Quizlet and Brainscape have highly rated mobile apps with smooth interfaces and offline access. RemNote's mobile app is also improving rapidly.

Do these alternatives use the same spaced repetition algorithm as Anki?

Most use similar SM-2 or SM-5 algorithms, but implementations vary. RemNote uses a modified SM-2, while Mnemosyne stays close to the original. Some apps like SuperMemo use proprietary algorithms.

Why SpaceRep Is the Ultimate Alternative

While all these alternatives are great, none of them combine flashcards with focus tools and calendar sync like SpaceRep does. Why use a separate Pomodoro timer when your flashcard app already knows what you need to study? SpaceRep is the only all-in-one learning platform that puts your flashcards, focus sessions, and schedule in one place—powered by the same spaced repetition engine.

And the best part? It's free during beta. No credit card required. No feature limits. Just a beautiful, modern study experience that actually fits around your life.