Anki vs Repetrax: An Honest Comparison
Anki is the gold standard for spaced repetition flashcards. Repetrax is a newer web-based alternative built specifically for language learners. If you're deciding between them, here's a direct comparison — without the marketing spin.
Side-by-Side Overview
| Feature | Anki | Repetrax |
|---|---|---|
| Algorithm | SM-2 (FSRS available) | SM-2 |
| Desktop app | Yes (Windows, Mac, Linux) | No — web only |
| iOS app | $24.99 (AnkiMobile) | Web app (iOS in development) |
| Android app | Free (AnkiDroid) | Web app |
| Price | Free desktop; $24.99 iOS | Free |
| Anki (.apkg) import | Native | Yes — full support with media |
| YouTube → flashcards | Via add-ons only | Built-in |
| JSON import | No | Yes (premium) |
| Add-ons / extensions | Extensive ecosystem | None |
| Shared deck library | Millions of decks | Curated public lists |
| Note types | Fully customisable | Standard front/back |
| FSRS algorithm | Yes (optional) | No |
Where Anki Wins
Add-on ecosystem. Anki's desktop add-on library is extraordinary. There are add-ons for image occlusion, sentence mining, Migaku dictionary integration, and hundreds of workflow improvements built by the community over 15+ years. If your study workflow depends on specific tools, Anki's ecosystem is irreplaceable.
Shared deck library. AnkiWeb hosts millions of community-created decks. Whatever you're studying — JLPT N2, medical school anatomy, the complete works of Shakespeare — there's probably a deck for it. Repetrax has curated public word lists but nothing comparable in scale.
Power user features. Custom note types, advanced card templates with HTML/CSS, filtered decks, custom study sessions, complex scheduling options — Anki exposes all of this. For users who want full control, Anki is unmatched.
FSRS. Anki now supports the FSRS algorithm, which research suggests outperforms SM-2 for long-term retention. Repetrax uses SM-2 only.
Where Repetrax Wins
No install. Repetrax is a web app — open a browser tab and you're studying. No download, no setup, no version updates. This matters more than it sounds when you're trying to build a daily habit.
YouTube → flashcard pipeline. Paste a YouTube URL into Repetrax and it extracts vocabulary from the video's captions, runs it through a frequency-weighted dictionary, and creates flashcards automatically. This works for both Italian and French content. There's no native equivalent in Anki — you need third-party add-ons and a more manual workflow.
Clean mobile experience. Repetrax works well on a phone browser. AnkiMobile works but costs $24.99 and has an interface that hasn't substantially changed since 2015.
Free. No purchase required. Repetrax is free during early access, with premium features available for users who want advanced imports.
Anki import. If you already have years of Anki cards, you can import your .apkg file into Repetrax with media (images, audio) intact and keep your existing vocabulary without rebuilding from scratch.
Who Should Stay on Anki
- You depend on specific add-ons (Migaku, Image Occlusion Enhanced, AnkiConnect integrations)
- You study medical, legal, or other complex material requiring custom note types and image occlusion
- You need the full shared deck library for obscure subjects
- You're a power user who wants FSRS and full algorithmic control
- You already have a desktop-first workflow and it's working
Who Should Consider Repetrax
- You're learning Italian or French vocabulary and want a YouTube import pipeline
- You find Anki overwhelming or ugly and keep abandoning it
- You want something that works on mobile without paying $24.99
- You're just getting started and don't need Anki's complexity
- You want to try spaced repetition without commitment
Migration: How to Bring Your Anki Decks to Repetrax
- In Anki desktop, go to File → Export
- Select Anki Deck Package (.apkg) and include media
- In Repetrax, go to Import → Anki (.apkg)
- Upload the file — cards, images, and audio transfer automatically
Your scheduling history won't transfer (Repetrax treats imported cards as new), but your vocabulary collection moves over intact.
The Honest Bottom Line
Anki and Repetrax aren't really competing for the same user. Anki is a powerful, complex tool for people who want maximum control. Repetrax is a cleaner, simpler tool built around the specific workflow of language learners — vocabulary from YouTube, clean daily reviews, no friction.
If you know what you're doing and Anki is working for you, stay with it. If you're a language learner who finds Anki frustrating or is starting fresh, Repetrax is worth trying.