Question 1

What is Voccle?

Accepted Answer

Voccle (Vocabulary + Cycle) is a free AI-powered flashcard app for language learners. You paste any text — an article, a newsletter, a subtitles file — and Voccle's AI instantly extracts the key vocabulary and generates flashcards complete with definitions, example sentences, and pronunciation. Then you study using the FSRS spaced-repetition algorithm, which schedules each card at the optimal moment to lock it into long-term memory.

Question 2

Is Voccle really free?

Accepted Answer

Yes, completely free. There is no paid tier. Guests can try word extraction 3 times without signing up. Creating a free account (Google or email) gives you unlimited extractions, unlimited decks and cards, email reminders, and full study history. Voccle is sustained by non-intrusive advertising.

Question 3

Do I need to sign up to use Voccle?

Accepted Answer

No account is needed to try it. You can extract words and study in demo mode without signing up. However, your progress won't be saved without an account, so we recommend creating a free account to unlock unlimited use and keep your study history.

Question 4

What languages does Voccle support?

Accepted Answer

Voccle supports 8 interface languages: Korean, English, Japanese, Spanish, French, German, Chinese, and Portuguese. The AI can generate flashcards for virtually any language — as long as the source text is in that language, the AI will extract vocabulary for it.

Question 5

Can I install Voccle as an app on my phone?

Accepted Answer

Yes! Voccle is a Progressive Web App (PWA). On iPhone/iPad: open Voccle in Safari → tap the Share button → "Add to Home Screen." On Android: tap the three-dot menu in Chrome → "Add to Home Screen" (or "Install app"). This gives you a native-app experience with offline support.

Question 6

How does the AI vocabulary extraction work?

Accepted Answer

Voccle sends your text to Google Gemini, an advanced AI model. Gemini identifies high-value vocabulary words — words that are common enough to be worth learning but not so common that you already know them. For each word it writes a clear definition, an example sentence, and a pronunciation guide. The whole process takes about 5–15 seconds.

Question 7

What is FSRS and how is it different from SM-2?

Accepted Answer

FSRS (Free Spaced Repetition Scheduler) is the latest generation of spaced repetition algorithms. The classic SM-2 (used by Anki since the 1980s) uses fixed interval multipliers. FSRS uses a machine-learning model trained on millions of real review sessions to predict exactly when you're about to forget a card and schedule it right before that moment. In practice this means 10–20% fewer reviews needed to reach the same retention rate compared to SM-2.

Question 8

What do the four study buttons (Again / Hard / Good / Easy) mean?

Accepted Answer

After flipping a card, rate your recall honestly:

• Again — You completely forgot or got it wrong. The card resets and will reappear very soon (within minutes or the next day).
• Hard — You remembered it, but it was a struggle. The next interval is slightly shorter than optimal.
• Good — Normal recall. The FSRS algorithm calculates the ideal next review date.
• Easy — Perfect, effortless recall. The next interval is much longer.

Honest self-assessment is important — if you click "Easy" for everything, Voccle can't schedule cards optimally.

Question 9

Why do I see more cards scheduled for tomorrow after I finish a session?

Accepted Answer

Cards rated "Again" (forgotten) enter a short-term re-learning cycle and will be due again soon. Cards rated "Good" or "Easy" are scheduled weeks or months out. The review count shown is the total due within the next 24 hours — it's normal for this number to stay non-zero as new cards mature through their early learning stages.

Question 10

How does the daily study limit work?

Accepted Answer

Each deck has a configurable daily limit (default: 20 new cards + 200 reviews per day). This prevents you from being overwhelmed when you import a large deck. You can adjust the limits in the deck settings. Completing your daily quota is more effective than cramming a large number in one session.

Question 11

What is the streak counter?

Accepted Answer

Your streak counts consecutive days on which you completed at least one study session. Maintaining a streak is a powerful motivator. If you miss a day, the streak resets to zero — but your cards and learning progress are never lost.

Question 12

How many decks and cards can I create?

Accepted Answer

Unlimited. Free accounts have no cap on the number of decks or flashcards. Create as many as you need for different languages, topics, or courses.

Question 13

Can I edit the AI-generated cards?

Accepted Answer

Yes. After the AI generates cards, you can edit the front (word), back (definition), pronunciation, and example sentence before saving. You can also edit cards later from the deck management page by clicking the pencil icon on any card.

Question 14

How do I share a deck with a friend?

Accepted Answer

Open your deck on the Deck page, click the share icon, and toggle "Public sharing" on. You'll get a shareable link. Anyone with the link can view and import the deck — even without a Voccle account (though they'll need to sign up to save it).

Question 15

What is the Library?

Accepted Answer

The Library contains two types of decks: Official Decks (curated, high-quality vocabulary sets for TOEIC, JLPT, CEFR, SAT/GRE, etc.) and Community Decks (decks shared by other Voccle users). You can import any deck from the Library into your own account with one click.

Question 16

Can I create cards manually without pasting text?

Accepted Answer

Yes. Go to Create and choose the manual entry mode. Type the word and language, then let AI fill in the definition, example, and pronunciation — or fill everything in yourself. This is useful for specific vocabulary you want to add that may not be in a text.

Question 17

How many cards should I study per day?

Accepted Answer

For sustainable long-term learning, 10–20 new cards per day is ideal for most people. Reviewing 50–150 mature cards per day is manageable. Quality beats quantity: it's far better to study 20 cards with full attention every day than to cram 200 cards once a week. Consistency is the single biggest predictor of vocabulary retention.

Question 18

I'm seeing the same card again immediately after rating it "Again." Is that a bug?

Accepted Answer

No, this is intended. Cards in the "learning" state (new or forgotten cards) cycle through the queue multiple times in the same session until you demonstrate stable recall. Once a card is rated "Good" or "Easy" twice in a row, it graduates to the "review" state and won't appear until its scheduled review date.

Question 19

Can I study offline?

Accepted Answer

Partial offline support is available when you've installed Voccle as a PWA. The app shell and previously loaded decks will work offline. However, generating new AI cards and syncing your review progress requires an internet connection.

Question 20

Does Voccle support audio or text-to-speech?

Accepted Answer

Not currently. Audio pronunciation is on the roadmap. For now, pronunciation is shown as phonetic notation (IPA or romanization) on each card.

Question 21

How is my data stored and is it private?

Accepted Answer

Your data is stored in encrypted cloud servers (PostgreSQL database). We never sell your personal data to third parties. The app uses Google Analytics and Google AdSense, which are standard web analytics and advertising tools. Passwords are hashed by Supabase Auth — we never see them. You can delete your account and all data at any time from Settings.

Question 22

How do I delete my account?

Accepted Answer

Go to Settings → scroll to the Danger Zone section → click "Delete Account." This permanently deletes your account, all decks, all cards, and all study history. This action cannot be undone. We comply with GDPR and PIPA (Korean Personal Information Protection Act).

Question 23

How do email review reminders work?

Accepted Answer

If you enable email reminders in Settings, Voccle sends you a daily email at 9 AM (server time) when you have cards due for review. The email includes a direct link to start studying. You can disable reminders at any time from Settings. We never send marketing emails.

Question 24

How is Voccle different from Anki?

Accepted Answer

Anki is extremely powerful and customizable, but has a steep learning curve — setting it up, finding decks, and creating cards manually takes time. Voccle is designed to be instantly usable: paste any text and you have a full deck of AI-generated cards in 15 seconds. Voccle uses the newer FSRS algorithm (which Anki also supports via add-on), is cloud-synced by default, and is completely free without any paid add-ons.

Question 25

How is Voccle different from Duolingo?

Accepted Answer

Duolingo uses a gamified, course-based format with a fixed curriculum. It's great for complete beginners. Voccle is for intermediate and advanced learners who want to expand their vocabulary from real-world materials. You bring your own content (articles, scripts, textbook passages) and Voccle turns it into personalised flashcards. No artificial gamification — just efficient spaced repetition.

Question 26

How is Voccle different from Quizlet?

Accepted Answer

Quizlet focuses on collaborative study sets and is popular in schools. Its spaced repetition system is limited and requires a paid subscription. Voccle's core differentiator is AI-powered card creation from any input text and a state-of-the-art spaced repetition algorithm (FSRS) — both completely free.

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