MintDeck vs Brainscape: FSRS vs Confidence-Based Repetition (2026)
Brainscape and MintDeck are both polished, long-running flashcard apps — but they bet on different things. Brainscape's wager is its huge library of expert-certified decks and its "Confidence-Based Repetition" method. MintDeck's is the FSRS algorithm, open import/export, and a free study loop.
Here's an honest look at where each one wins.
The Quick Summary
Choose MintDeck if: You want the FSRS spaced-repetition algorithm, the ability to import your Anki and Quizlet decks, data you can export, and a free study loop with pay-per-use AI.
Choose Brainscape if: You mainly want to study from its large catalog of expert-certified decks (MCAT, bar, AP, languages, certifications), and you want the same app on Android and the web as well as iOS.
The Algorithm: FSRS vs Confidence-Based Repetition
This is the headline difference, and it's a real one.
MintDeck uses FSRS — the Free Spaced Repetition Scheduler. FSRS fits a memory model to each card (difficulty, stability, retrievability) from your review history and predicts when you're about to forget, optimizing reviews for a target retention rate. It's evidence-based and tunable. See why FSRS is the most advanced spaced repetition system.
Brainscape uses "Confidence-Based Repetition" (CBR) — after each card, you rate your confidence on a 1–5 scale, and cards you rate low come back sooner. It's a reasonable, intuitive heuristic, but it's not the same thing as a modern algorithm: there's no per-card memory model, no retrievability prediction, and no target-retention tuning. Brainscape's own materials don't reference FSRS or SM-2.
If you want scheduling grounded in the current spaced-repetition research, FSRS is the stronger engine. If you like the simplicity of rating your own confidence, CBR is pleasant to use.
Content Library: Brainscape's Real Strength
Brainscape's biggest asset is its catalog. Its "Knowledge Genome" is a large marketplace of certified decks vetted by subject experts and publishers — across the MCAT, bar exam, AP subjects, languages, and professional certifications — plus user-created and sellable decks.
MintDeck offers a curated set of free decks and an AI generator to build your own, but it does not try to match Brainscape's certified-content marketplace. If your study plan is "find a great pre-made certified deck and drill it," that's a genuine point for Brainscape.
The catch: most certified content is Pro-gated. Free Brainscape users get only a few thousand preloaded certified cards.
Price
| MintDeck | Brainscape | |
|---|---|---|
| Core study loop | Free forever | Free for self-made cards & spaced repetition |
| Free-tier limits | None on the study loop | AI capped (~100 cards), certified content limited, no media, no export |
| Paid plan | Pay-per-use AI credits | Pro: ~$19.99/mo, ~$95.99/yr, or $199.99 lifetime |
| Export your data | ✅ Free | Pro-only |
Both let you study self-made cards free. But Brainscape gates a lot behind Pro: unlimited AI, the certified library, adding images/audio to cards, and — notably — exporting your own decks. MintDeck keeps the study loop fully free and sells only AI, as credits.
Import, Export & Owning Your Data
This is the other place MintDeck pulls ahead.
| MintDeck | Brainscape | |
|---|---|---|
Import Anki .apkg | ✅ Full | ❌ Not supported (rebuild via CSV) |
| Import Quizlet sets | ✅ Via CSV (guide) | Via CSV export from Quizlet |
| Import CSV / spreadsheet | ✅ | ✅ (CSV, TXT, XLSX, ODS) |
| Export your decks | ✅ Free | Pro-only |
Brainscape doesn't import Anki .apkg files at all — migrating from Anki means exporting to a spreadsheet and rebuilding. And exporting out of Brainscape requires Pro, which is a recurring user complaint about data ownership. MintDeck imports Anki decks with full fidelity, has a dedicated Quizlet path, and lets you export freely.
AI Features
| MintDeck | Brainscape | |
|---|---|---|
| Generate cards from text/PDF | ✅ (credits) | ✅ (paste text; ~100 cards free, then Pro) |
| AI pricing model | Pay-per-use credits | Bundled into Pro subscription |
Both offer AI card generation. Brainscape caps it at ~100 cards on free and then bundles unlimited generation into the Pro subscription. MintDeck charges per use — 10 credits to start, then pay as you go, no subscription.
Platforms
| MintDeck | Brainscape | |
|---|---|---|
| iPhone / iPad | ✅ | ✅ |
| Mac | Via iCloud | Via web |
| Android | ❌ | ✅ |
| Web | ❌ | ✅ |
| visionOS | ❌ | ✅ |
Brainscape's reach is broader — iOS, Android, web, and visionOS — so it wins if you study across an iPhone and an Android phone or a laptop. MintDeck is Apple-only (iPhone, iPad, Mac via iCloud). Worth noting: Brainscape reviews mention card-layout breakage on mobile and limited formatting, and the app has no text-to-speech, whereas MintDeck includes an audio study mode.
App Store Ratings
- MintDeck: 4.5★ on the App Store (newer, smaller base)
- Brainscape: ~4.8★ on iOS with a large review base (~21k); ~4.6★ on Google Play
Brainscape is a mature, well-rated app — its history shows in the review count. MintDeck is newer with a smaller base.
Who Should Use MintDeck
- Students who want the FSRS algorithm rather than a confidence heuristic
- Anyone with an Anki library — Brainscape can't import
.apkg, MintDeck can - People who want to export and own their decks without paying for the privilege
- Those who prefer pay-per-use AI over a subscription, and want audio study
Who Should Use Brainscape
- Students who want to study from expert-certified, pre-made decks
- People who study across Android, web, and iOS
- Users who like the simplicity of confidence-based self-rating
- Those who'll pay Pro for the certified library and don't need Anki import
The Honest Verdict
Brainscape's strengths are real: a big, curated library of certified decks and broad platform support. If your study strategy is built around great pre-made content, it's a strong choice — provided you're comfortable subscribing to Pro and you don't have an Anki library to bring.
MintDeck wins on the fundamentals of a personal study tool: a genuinely modern algorithm in FSRS (versus Brainscape's confidence heuristic), full Anki .apkg import (which Brainscape doesn't offer), free data export (which Brainscape paywalls), pay-per-use AI instead of a subscription, and audio study. If you're bringing your own material and you care about how reviews are scheduled, MintDeck is the better engine.
Try MintDeck free — import your Anki and Quizlet decks →
Frequently Asked Questions
Does Brainscape use FSRS?
No. Brainscape uses its own "Confidence-Based Repetition," where you rate your confidence 1–5 after each card. MintDeck uses FSRS, the modern algorithm that models your forgetting curve per card.
Can Brainscape import Anki decks?
No — Brainscape doesn't support .apkg import; you'd export to a spreadsheet and rebuild. MintDeck imports Anki decks with cards, media, tags, and structure intact.
Can I export my decks from Brainscape?
Only with a Pro subscription. MintDeck lets you export your decks for free.
Is Brainscape free?
You can study self-made cards free, but AI is capped at ~100 cards, most certified content is Pro-gated, and export requires Pro (around $19.99/month, $95.99/year, or $199.99 lifetime). MintDeck's study loop is free, with AI as pay-per-use credits.
Compare more: MintDeck vs Anki · MintDeck vs Quizlet · MintDeck vs RemNote · MintDeck vs StudyFetch
Related: Best spaced repetition apps 2026 · The science of learning
