## [What Is Spaced Repetition?](/content/blog/spaced-repetition-beginners-guide#what-is-spaced-repetition/index.html)

Spaced repetition is a study technique where you review material at **increasing intervals** over time. Instead of cramming everything the night before, you spread your reviews across days, weeks, and months.

The result? You remember **90%+ of what you study** instead of the typical 20% from cramming.

## [The Forgetting Curve](/content/blog/spaced-repetition-beginners-guide#the-forgetting-curve/index.html)

In 1885, German psychologist Hermann Ebbinghaus discovered the **forgetting curve** — the rate at which we forget new information:

- **After 1 hour**: 50% forgotten  
- **After 1 day**: 70% forgotten  
- **After 1 week**: 90% forgotten  
- **After 1 month**: Nearly everything forgotten

Spaced repetition fights the forgetting curve by scheduling reviews **right before you would forget**. Each review strengthens the memory and extends the time until the next review is needed.

## [How It Works in Practice](/content/blog/spaced-repetition-beginners-guide#how-it-works-in-practice/index.html)

Here's a simplified example:

1. **Day 1**: Learn a new concept → review it  
2. **Day 2**: Review again (1-day interval)  
3. **Day 4**: Review again (2-day interval)  
4. **Day 8**: Review again (4-day interval)  
5. **Day 16**: Review again (8-day interval)  
6. **Day 32**: Review again (16-day interval)

Each time you successfully recall the information, the interval **doubles**. If you forget, the interval **resets** to a shorter period.

## [The Research Behind It](/content/blog/spaced-repetition-beginners-guide#the-research-behind-it/index.html)

Spaced repetition isn't a study hack — it's one of the most well-researched techniques in cognitive science:

- **Cepeda et al. (2006)**: Spacing study sessions improves retention by 10–30% compared to massed practice  
- **Karpicke & Roediger (2008)**: Repeated retrieval produces more learning than repeated studying  
- **Dunlosky et al. (2013)**: Rated spaced practice as one of the two most effective study techniques (alongside practice testing)

## [Spaced Repetition Tools](/content/blog/spaced-repetition-beginners-guide#spaced-repetition-tools/index.html)

### [Anki (Manual Cards, Powerful Algorithm)](/content/blog/spaced-repetition-beginners-guide#anki-manual-cards-powerful-algorithm/index.html)

Anki is the gold standard for SRS power users:

- Free and open-source  
- Highly customizable algorithm  
- Massive community deck library  
- **Downside**: Ugly interface, steep learning curve, manual card creation

### [Butterfast (AI Cards, Modern Interface)](/content/blog/spaced-repetition-beginners-guide#butterfast-ai-cards-modern-interface/index.html)

Butterfast combines AI-generated flashcards with built-in spaced repetition:

- Upload a PDF, YouTube video, or audio → get flashcards automatically  
- Built-in SRS scheduling (no setup required)  
- Gamification (XP, levels, streaks) to maintain consistency  
- **Downside**: Less algorithm customization than Anki

## [How to Start Using Spaced Repetition](/content/blog/spaced-repetition-beginners-guide#how-to-start-using-spaced-repetition/index.html)

### [Step 1: Choose Your Tool](/content/blog/spaced-repetition-beginners-guide#step-1-choose-your-tool/index.html)

If you want maximum control: **Anki**  
If you want AI-generated cards with a modern UI: **Butterfast**

### [Step 2: Create or Generate Cards](/content/blog/spaced-repetition-beginners-guide#step-2-create-or-generate-cards/index.html)

With Butterfast:

1. Upload your study material (PDF, YouTube, audio, text)  
2. Select "Flashcards" as output  
3. AI generates cards automatically with spaced repetition scheduling

### [Step 3: Review Daily](/content/blog/spaced-repetition-beginners-guide#step-3-review-daily/index.html)

The key to spaced repetition is **consistency**. Review your due cards every day — it takes 5–15 minutes.

### [Step 4: Trust the Process](/content/blog/spaced-repetition-beginners-guide#step-4-trust-the-process/index.html)

Don't review cards that aren't due. The algorithm knows when you're about to forget — trust it.

## [Common Mistakes](/content/blog/spaced-repetition-beginners-guide#common-mistakes/index.html)

### [1. Making Cards Too Complex](/content/blog/spaced-repetition-beginners-guide#1-making-cards-too-complex/index.html)

Each card should test **one concept**. If your card requires remembering 5 things, break it into 5 cards.

### [2. Skipping Days](/content/blog/spaced-repetition-beginners-guide#2-skipping-days/index.html)

Missing a day creates a backlog. Consistency beats intensity.

### [3. Re-Reading Instead of Recalling](/content/blog/spaced-repetition-beginners-guide#3-re-reading-instead-of-recalling/index.html)

Don't flip the card immediately. Spend 5–10 seconds **trying to recall** before checking.

### [4. Cramming Before Exams](/content/blog/spaced-repetition-beginners-guide#4-cramming-before-exams/index.html)

Spaced repetition works best over weeks and months. Start early.

## [FAQ](/content/blog/spaced-repetition-beginners-guide#faq/index.html)

### [How long does it take to see results?](/content/blog/spaced-repetition-beginners-guide#how-long-does-it-take-to-see-results/index.html)

Most students notice improved recall within 1–2 weeks of consistent daily reviews.

### [Can I use spaced repetition for any subject?](/content/blog/spaced-repetition-beginners-guide#can-i-use-spaced-repetition-for-any-subject/index.html)

Yes — it works for any subject that requires memorization: languages, medicine, law, history, science, programming.

### [How many new cards per day?](/content/blog/spaced-repetition-beginners-guide#how-many-new-cards-per-day/index.html)

Start with 10–20 new cards per day. Too many creates an overwhelming review backlog.

### [Is Butterfast's SRS as good as Anki's?](/content/blog/spaced-repetition-beginners-guide#is-butterfasts-srs-as-good-as-ankis/index.html)

Anki's algorithm is more configurable. Butterfast's advantage is that cards are generated automatically and the interface is modern with gamification built in.

## [Start Remembering What You Study](/content/blog/spaced-repetition-beginners-guide#start-remembering-what-you-study/index.html)

Stop forgetting 90% of what you learn. Use spaced repetition to build lasting knowledge.