Buyer's Guide

All Levels • 10 min read

Best Flashcard App for Language Learning

Every list of flashcard apps ranks the same four differently, because they are answering different questions. This one compares Anki, Quizlet, Mochi, and Brainscape on what decides whether a deck survives past month two: how reviews are scheduled, what a year costs, and how long it takes to fill the thing.

ComparisonAnkiQuizletMochiBrainscapeSpaced Repetition

By Siarhei HamanovichPublished August 5, 2026

The short answer

There is no single winner, because these four apps are good at different things. Here is the pick for each kind of learner.

Best overall: Anki

It is the only one of the four with a true long-term scheduler, it is free on almost every platform, and it handles any language you throw at it.

Anki Generator

Best for beginners: Quizlet

Nothing else gets you from a word list to a study session faster, and the games make the first few weeks stick when motivation is fragile.

Quizlet Generator

Best low-setup spaced repetition: Mochi

Real spaced repetition with sensible defaults and a clean Markdown editor, for people who want Anki's scheduling without Anki's settings screen.

Mochi Generator

Best for honest self-rating: Brainscape

Confidence-Based Repetition makes you rate every card from 1 to 5, which surfaces the words you only half know instead of letting you wave them through.

Brainscape Generator

Before the feature lists, note what the research actually rewards. Bahrick and Phelps taught learners 50 Spanish word pairs and tested them eight years later: the group whose relearning sessions were spaced 30 days apart recalled far more than groups who did the same number of sessions one day apart or all on the same day. The gap between reviews, not the interface, is what moves vocabulary into long-term memory, which is why scheduling is the first thing we compared. Source: Bahrick and Phelps (1987)

How we compared them

Feature checklists make every app look similar. These six questions are the ones that separate a deck you still use in June from a deck you abandoned in February.

Does it schedule reviews, or just quiz you?

A flashcard app without a long-term scheduler is a quiz app. The question is whether it decides when you see a word again, or whether that is left to you.

What does a year of it cost?

Free tiers differ wildly. We looked at what you actually pay to study daily on your phone and your laptop for twelve months, not at the sticker price.

How long does 100 cards take to build?

This is where learners quit. An app can have a perfect algorithm and still fail you if filling it takes an evening per chapter.

Does it work where you study?

Commutes, planes, and dead zones are prime review time. Offline study and sync across phone and desktop matter more than any feature list.

Can it handle the language, not just the words?

Audio, images, non-Latin scripts, and room for an example sentence. A card that shows a word with no context teaches you a word with no context.

Can you get your cards back out?

You will change apps at least once. An app you cannot export from turns two years of reviews into someone else's asset.

Anki vs Quizlet vs Mochi vs Brainscape at a glance

Feature	Anki	Quizlet	Mochi	Brainscape
Price	Free on desktop, web, and Android; one-time paid app on iOS	Free with ads; Quizlet Plus subscription unlocks extras	Free tier with limits; Pro subscription for unlimited use	Limited free tier; Brainscape Pro subscription for full access
Review scheduling	True spaced repetition with SM-2 and the modern FSRS algorithm	Learn mode adapts inside a session, no long-term scheduler	SM-2 style scheduling with sensible defaults out of the box	Confidence-Based Repetition driven by your own 1 to 5 ratings
Learning curve	Steepest: dated interface and a wall of settings	Gentlest: paste a list and study in any browser	Gentle if you are comfortable writing Markdown	Gentle, with a guided rating flow that explains itself
Building cards	By hand, or bulk import from .apkg and CSV/TSV	By hand, or paste an import-ready term and definition list	Markdown authoring, or import a .mochi package	By hand, or CSV import into a class
Offline study	Fully offline, with free AnkiWeb sync	Offline study requires Quizlet Plus	Offline in the desktop and mobile apps, with cloud sync	Offline study in the mobile apps on a paid plan
Language extras	Audio, images, and any script on any field, extendable with add-ons	Built-in pronunciation audio; custom images and audio on Plus	Images and audio attachments, with Markdown formatting	Images and audio on cards, plus curated language classes
Shared content	Millions of community shared decks	The largest library of user-created study sets	Small marketplace, mostly personal decks	Curated expert classes alongside user decks
Best import format	Native .apkg package, or CSV/TSV	Import-ready term and definition list	Native .mochi package, or Markdown	CSV ready for a Brainscape class
Best for	Vocabulary you still want to know in three years	Starting today, studying for class, studying with others	Spaced repetition without the configuration	Learners who study better when they rate their own confidence

Scheduling is the only row that changes outcomes rather than comfort. Anki runs true spaced repetition with SM-2 and FSRS, Mochi runs an SM-2 style schedule with defaults you never have to touch, and Brainscape schedules from the confidence score you give each card. Quizlet's Learn mode adapts inside a session but never decides that a word is due next Thursday, which is why words you finished in Quizlet quietly fade.

On price the four are shaped differently rather than priced differently. Anki is free everywhere except a one-time purchase on iOS, Quizlet is free with ads and sells convenience through Plus, and both Mochi and Brainscape run capped free tiers with a subscription for real use. Over a year, Anki is the only one that can genuinely cost nothing.

Ease of use runs in the opposite direction to power. Quizlet asks nothing of you, Mochi and Brainscape ask a little, and Anki asks for an evening of setup before it repays you for years. Pick the one whose first week you will actually survive.

None of the four help you write the cards, and that is where most decks die. Anki, Quizlet, Mochi, and Brainscape all give you an empty deck and a blinking cursor, so the deciding factor is usually how fast you can fill one, not which algorithm is theoretically best.

The four apps in detail

Each one is genuinely the right answer for someone. Here is who, and what you give up in exchange.

Anki

Best overall

Anki is where most serious language learners end up, and the reason is boring: its scheduler is the best of the four and it is free. It is also the least pleasant to start with. If you can survive the first evening, it will still be showing you the right words in three years.

What it does well

True spaced repetition with SM-2 and the modern FSRS scheduler, which is as close to solved as review timing gets.
Free on desktop, web, and Android, fully offline, with free AnkiWeb sync between devices.
Any field can hold audio, images, or a non-Latin script, so Japanese, Arabic, and Hindi decks behave the same as Spanish ones.
Native .apkg import, so a generated deck arrives with its note type and tags intact.

What you give up

The interface looks like 2010 and the deck options screen is genuinely intimidating on day one.
The official iOS app is a one-time purchase, and it is the priciest single payment in this comparison.
It does nothing to help you write good cards. An empty Anki is worth less than a full Quizlet.

Generate an Anki deck

Quizlet

Best for beginners

Quizlet is the app that gets used. It has the weakest scheduling here, but scheduling only matters for decks you keep opening, and Quizlet is far better than the others at making you open it in week one.

What it does well

You can go from a pasted word list to a study session in under a minute, in any browser, with no setup.
Match, Test, and Quizlet Live make group and classroom study genuinely enjoyable in a way Anki was never designed for.
The set library is enormous, so a set for your textbook chapter often already exists.

What you give up

Learn mode adapts within a session but there is no long-term scheduler, so words you marked as known quietly decay.
The free tier carries ads, and offline study sits behind Quizlet Plus.
Getting a large set back out is clumsy, which matters on the day you outgrow it.

Generate a Quizlet set

Mochi

Best low-setup spaced repetition

Mochi is the compromise most people are actually looking for when they bounce off Anki: the same style of scheduling, none of the configuration, and an editor that feels like a modern notes app.

What it does well

Spaced repetition that works correctly the moment you open it, with defaults you never need to touch.
Markdown authoring, so writing a card feels like writing a note rather than filling a form.
A clean, modern interface you will not resent opening every morning, which is not a small thing for a daily habit.

What you give up

The free tier is capped, so daily use realistically means the Pro subscription.
A small ecosystem: few shared decks, few add-ons, and a much smaller community to ask for help.
Less scheduling control than Anki if you are the kind of learner who wants to tune intervals.

Generate a Mochi deck

Brainscape

Best for honest self-rating

Brainscape replaces right-or-wrong with a 1 to 5 confidence rating, and that single change fixes the most common self-deception in flashcard study: counting a word as known because you almost remembered it.

What it does well

Confidence-Based Repetition forces a real self-assessment on every card, so half-known words keep coming back.
Curated expert classes sit alongside your own decks, which helps when you do not know what to study next.
A simple, guided flow with almost nothing to configure.

What you give up

The most limited free tier of the four; the useful version is the paid one.
Rating every card from 1 to 5 takes more deliberation than a quick pass or fail, which drags on long sessions.
Card formatting is built around term and definition, so complex cards are harder to express.

Generate a Brainscape deck

What about Duolingo, Memrise, and the rest?

These names come up in every search for the best flashcard app, but they answer a different question. Here is where each of them sits.

Duolingo

A course, not a flashcard app. It teaches its own curriculum and you cannot load your own vocabulary into it, so it sits alongside a deck rather than replacing one.

Memrise

Built around its own courses and native-speaker video clips. You can add your own material, but the app is not designed to be the home of your personal deck.

RemNote

A notes app with spaced repetition attached. Excellent if your study notes already live there, heavier than you need if all you want is vocabulary.

AnkiApp

Despite the name it is not related to Anki and does not read Anki's decks. If you meant Anki, download it from apps.ankiweb.net.

The app is not the bottleneck, the cards are

Every one of these apps hands you an empty deck. The reason most decks die is not a bad algorithm, it is the twenty minutes it takes to type out thirty words with translations and example sentences, every single time you finish a chapter.

That is the part NextLang removes. Give it a topic, a word list, or a photo of a textbook page, and it writes the cards, then exports them in the format your app actually wants. Which means the question on this page becomes cheap: generate one deck, try it in two apps, keep the one you open.

What you get

Paste a word list, a topic, or a photo of a textbook page and get finished cards back
Every card carries an example sentence, not just a bare translation
Export to native .apkg for Anki, .mochi for Mochi, or an import-ready list for Quizlet and Brainscape
Any of 20 languages, in both directions

Or skip the app choice entirely

NextLang has its own vocabulary space with a built-in 1/3/7/21 day spaced repetition schedule, so you can save words and study them without picking a fifth app first.

Build a deck for all four Study in NextLang

Compare two at a time

Narrowed it down to a pair? These go deeper than the table above:

FAQ

Choosing a flashcard app: common questions

Quick answers to what learners ask before they commit to an app.

What is the best flashcard app for learning a language?

Anki is the best overall choice for language learning because it is the only widely used app with a true long-term scheduler (SM-2 and FSRS), it is free on desktop, web, and Android, and it handles audio and non-Latin scripts on any field. Quizlet is the better first app if you want to start today, Mochi is the better choice if Anki's setup puts you off, and Brainscape suits learners who study better when they rate their own confidence.

Is Anki really better than Quizlet for vocabulary?

For long-term retention, yes. Anki schedules each word for the day you are about to forget it, while Quizlet's Learn mode only adapts within a study session. In practice that means Quizlet vocabulary tends to fade after the test and Anki vocabulary tends to stay. Quizlet still wins on getting started, which is why many learners begin there and move to Anki as their deck grows.

What is the best free flashcard app?

Anki. It is free on Windows, macOS, Linux, Android, and in the browser through AnkiWeb, with free sync and no ads; only the official iOS app costs money, as a one-time purchase. Quizlet's free tier is usable but carries ads and locks offline study behind Quizlet Plus, while the free tiers of Mochi and Brainscape are capped.

Do I actually need spaced repetition, or will any app do?

For a vocabulary list you need next week, any app will do. For a language you intend to speak, spaced repetition is the difference between reviewing 30 words a day forever and reviewing 30 words a day that shrink to 5 as they stick. Bahrick and Phelps found that Spanish word pairs relearned at 30-day intervals were still being recalled eight years later, far better than the same number of sessions crammed together.

Can I move my cards between these apps?

Mostly. Anki exports .apkg and CSV, Mochi reads Markdown and .mochi packages, and Quizlet and Brainscape both accept a plain term and definition list or CSV. The simplest route is not to migrate at all: generate the deck once with NextLang and export it in each app's format, so trying a second app costs you nothing.

How many new cards a day should I add?

Ten to twenty new words a day is sustainable for most learners in any of these apps. New cards are the expensive ones: every word you add today becomes a review tomorrow, in three days, in a week, and so on, so a burst of 200 new cards turns into an hour of daily reviews two weeks later. Add fewer than feels exciting and you will still be studying next month.