What Features Does Anki Offer for Syncing, Media, and Large Decks?

Updated

Anki is a flashcard program built to help you spend more time on challenging material and less on what you already know. If your question is whether it can handle your study scale and content format, the short answer is yes on all three counts: AnkiWeb syncs cards across devices for free, cards support audio, images, videos, and scientific markup, and decks of 100,000+ cards are handled without problems. The sections below explain what each capability actually does and where the practical limits sit.

Cross-device syncing with AnkiWeb

AnkiWeb is the free synchronization service that keeps your cards consistent across devices. You study on one device, sync, and pick up the same collection elsewhere.

What this means in practice:

  • Input: your local collection plus an AnkiWeb account.
  • Action: sync from the desktop app or a mobile client.
  • Expected result: the same decks, cards, and review scheduling appear on every synced device.

The site describes AnkiWeb as free, so syncing itself does not require a paid tier. Note that the mobile apps differ: AnkiDroid for Android is free and developed by contributors, while AnkiMobile is the official iOS app and its purchases help fund Anki's development. If you study across an iPhone and a Windows PC, the sync service is what ties those two together.

Media and markup support

Cards are not limited to plain text. Anki supports audio, images, videos, and scientific markup, which matters if your material is language pronunciation, anatomy diagrams, or equations.

Practical uses:

  • Language learners can attach native-speaker audio to a vocabulary card.
  • Medical and science students can embed diagrams and render formulas through scientific markup.
  • Any subject can use images or short video clips as the prompt or the answer.

The trade-off is file size and sync time: media-heavy collections take longer to sync and consume more storage on each device. Keep large media files reasonable if you sync frequently.

Customization of layout and review timing

Two separate things are customizable: how a card looks, and when it comes back.

  • Layout: change flashcard layouts easily, so the same note can present differently depending on what you are testing.
  • Timing: adjust the timing of reviews. After you rate your recall, Anki schedules the next review for when you are most likely to forget the information.

This scheduling behavior is the core mechanism. Instead of reviewing everything on a fixed calendar, you rate each card, and the interval stretches for material you know and shortens for material you don't. The result is more repetitions on hard items and fewer on easy ones.

Large decks and add-on extensibility

Anki can handle decks of 100,000+ cards with no problems, according to the site. That scale covers most long-term use cases — multi-year professional exams, cumulative language vocabulary, or a full medical curriculum.

If the built-in feature set is not enough, add-ons extend Anki with new features and functionality. Add-ons are the main path for custom workflows, and because Anki is an open-source community project, people who code can help maintain Anki or create new add-ons and features.

Getting oriented: decks and reviews

The two basic concepts are worth knowing before you commit:

Concept What it is Why it matters
Decks Groups of flashcards Let you study specific parts of your collection instead of everything at once
Reviews Rating your recall of each card Determines when Anki shows the card again

The intended flow is simple: create a new deck, add some flashcards, then start reviewing and rate your recall with the most suitable option. Complex workflows are supported, but getting started does not require them.

Platform availability

The free computer version is available for all major platforms. The current desktop version listed is 26.09.2, with downloads for Windows (10+ x64, 11 ARM), macOS (13+ on Apple Silicon and Intel), and Linux (2022+ x64, 2024+ ARM). An installation guide and change notes with older releases are provided alongside the downloads.

How to decide

  • Choose Anki if you need free cross-device sync, media-rich cards, fine control over review timing, and a collection that may grow past 100,000 cards.
  • Check the mobile platform first if cost matters to you: AnkiDroid on Android is free, while AnkiMobile on iOS is a paid official app.
  • Plan for add-ons if your workflow is unusual — the base program covers standard study, and extensions fill the gaps.
  • Watch media volume if you sync often, since audio and video increase sync and storage load.