Anki is the most powerful flashcard app in the world. It's free, open-source, and used by medical students, language learners, and professionals worldwide. It's also notoriously unintuitive for beginners. This guide covers everything you need to go from zero to productive.
What Is Anki?
Anki is a spaced repetition flashcard application. Unlike simple flashcard apps, Anki uses an algorithm (SM-2) to schedule when you see each card based on how well you know it. Cards you struggle with appear more often; cards you know well appear less.
It's available on Windows, Mac, Linux, iOS (AnkiMobile, $24.99), and Android (AnkiDroid, free). All platforms sync through AnkiWeb.
Step 1: Install Anki
Download the desktop version from apps.ankiweb.net. Create a free AnkiWeb account to sync your cards across devices. On the mobile apps, sign in with the same AnkiWeb account.
Step 2: Understand the Interface
When you open Anki, you see a list of decks. Each deck contains cards. The main screen shows three numbers next to each deck:
- Blue — new cards you haven't seen yet
- Red — cards you got wrong and need to relearn
- Green — review cards that are due today
Click a deck to start reviewing. You'll see the question side of a card. Think of the answer, then click "Show Answer". Rate yourself: Again, Hard, Good, or Easy.
Step 3: Create Your First Deck
You have two options for getting cards into Anki:
Option A: Create Cards Manually
Click "Add" in the toolbar. Choose a note type (Basic, Basic and Reversed, or Cloze). Type your question in the "Front" field and the answer in the "Back" field. Click "Add".
This works for small decks but becomes tedious for large volumes of material.
Option B: Import an .apkg File
An .apkg file is Anki's native deck format. You can import it by going to File → Import, or by double-clicking the file. This is the fastest way to get a large deck into Anki.
Tools like Deckio let you upload a PDF, lecture notes, or YouTube video and generate an .apkg file with AI. You get a ready-to-study deck without typing a single card.
Step 4: Configure Your Settings
Click the gear icon next to a deck to open its options. The most important settings:
- New cards/day — Start with 10-20. Adding too many creates an unmanageable review pile.
- Maximum reviews/day — Default is 200, which is fine for most users. Don't lower it or you'll build up a backlog.
- Learning steps — Default is "1m 10m" (1 minute, then 10 minutes). For harder material, try "1m 10m 1d" to add a 1-day learning step.
- Graduating interval — How many days until a new card becomes a review card. Default 1 day is fine.
Step 5: Build a Daily Habit
Anki only works if you use it daily. Here's how to make it stick:
- Same time every day — Morning reviews work best for most people. Your brain is fresh and you start the day with a sense of accomplishment.
- Never skip a day — One missed day means double reviews tomorrow. Two missed days means triple. The pile-up is the number one reason people quit Anki.
- Keep sessions short — 15-20 minutes is plenty. If it's taking longer, you have too many new cards per day.
- Use mobile for catch-up — AnkiDroid (Android) or AnkiMobile (iOS) let you do reviews anywhere — on the bus, in a queue, between classes.
Essential Add-ons
Anki's add-on system extends its functionality. Install them from Tools → Add-ons → Get Add-ons. Here are the most useful ones:
- Review Heatmap — Shows your review history as a calendar heatmap. Great for motivation and streak tracking.
- Image Occlusion Enhanced — Lets you create cards by hiding parts of an image. Essential for anatomy, diagrams, and maps.
- Speed Focus Mode — Adds a timer to each card to prevent spending too long on any single review.
- More Overview Stats — Shows additional statistics about your decks, retention rate, and review patterns.
Common Mistakes Beginners Make
- Downloading shared decks instead of making your own — Pre-made decks are tempting but less effective. You learn better from cards you created (or at least reviewed and edited). AI-generated cards from your own materials are a good middle ground.
- Adding too many new cards at once — 200 new cards today means 200+ reviews in 3 days. Start small.
- Pressing "Easy" too often — Only use "Easy" if you knew the answer instantly without any hesitation. Most cards should get "Good".
- Ignoring the backlog — If you miss a few days and have 500+ reviews, don't panic. Use the "Custom Study" feature to work through them gradually, or consider resetting cards you've forgotten completely.
Using Deckio with Anki
The workflow is simple:
- Upload your study material (PDF, notes, images, or YouTube link) to Deckio.
- AI generates flashcards — Q&A, cloze, and multiple choice.
- Review and edit the cards in the browser.
- Click "Export to Anki" to download an
.apkgfile. - Double-click the file to import it into Anki. Done.
You get the quality of AI-generated cards with the scheduling power of Anki's spaced repetition engine. Or, if you prefer, use Deckio's built-in practice mode with SRS — no export needed.