Best Anki decks for Step 1: when to use AnKing or Zanki, when to write your own cards, and how to avoid overload

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If you are taking Step 1 in 2026 and wondering whether to use AnKing, Zanki, another pre-made deck or only your own cards, the short answer is: most students do best with a hybrid. Use a maintained Step 1 deck like AnKing as your backbone, but aggressively suspend cards and layer in a smaller set of custom cards. Pre‑made decks save time but can crush you with reviews if you turn everything on at once.

In this guide we will compare the major Step 1 decks, explain how to use suspending, tags, and image occlusion, and walk through what actually happens if you move decks into another app (including what you lose). We will also show where a tool like Alma fits if you want AI help generating questions from your own notes without replacing Anki or the official USMLE content outline.

Which Step 1 Anki decks are actually worth considering in 2026?

In this guide, we will focus on widely discussed Step 1 decks such as AnKing, Zanki, Lightyear, Brosencephalon and a few smaller focused decks. Some recent comparisons describe AnKing v12 as a recommended, actively maintained deck that consolidates older decks and aligns its content with First Aid.^[1][2] Older decks alone are often described as less maintained and largely superseded by AnKing.^[1][2]

What is Zanki and when does it still make sense?

There is one important exception: if you already have a large, mature Zanki deck with years of review history, some sources suggest staying with it, potentially layering AnKing tags or other resources on top, because switching would reset your review intervals.^[1][2] That review‑history issue becomes central later when we talk about moving decks into other apps.

How do Lightyear and other big decks fit in?

Smaller specialized decks like the Pepper pharmacology and microbiology decks can be useful if you have a very specific weakness.^[3][2] For example, one review notes that Pepper’s pharmacology deck is meant to be used alongside Sketchy Pharmacology and that its microbiology deck offers a concise alternative to larger micro decks.^[3] More recent comparisons caution that AnKing already incorporates much of the high‑yield content from Pepper and similar decks, so running multiple overlapping decks can increase review burden.^[1][2]

How many cards are we talking about, really?

To visualize the commitment across the main decks discussed in 2026 guides, here is a simplified summary of their reported card counts and status. Remember these counts are approximate and can change with updates; always confirm on the deck’s own page as of October 2026.

Pre-made Step 1 deck vs building your own cards: how should you decide?

Several guides describe high‑quality premade Anki decks for Step 1 and Step 2 as essentially crowd‑sourced curriculums, reflecting how they aggregate material across major resources and thousands of student‑created cards.^[4][2] That aggregation is powerful, but you still have to manage the resulting review volume day to day.

When does a big pre-made deck like AnKing make sense?

Pre‑made decks are particularly valuable if you are early in pre‑clinicals, want a single consistent tagging system to tie together resources like First Aid, Pathoma and Sketchy, and prefer not to spend hours generating every card yourself.^[4][1][3][2] AnKing’s role as an amalgam of older decks means it can serve as a “one‑stop shop” throughout med school.^[2]

Because AnKing is actively maintained, errors and outdated content are progressively cleaned up, which is not the case for archived decks like Brosencephalon.^[1][2] If you are following general Step 1 resources and not a very idiosyncratic curriculum, this maintenance and tagging usually outweigh the loss of custom tailoring.

When does writing your own cards beat pre-made?

Custom cards shine when your curriculum differs from standard Step 1 resources, when you learn best by actively transforming material into prompts, or when you want tight control of what enters spaced repetition. Even decks such as AnKing are often supplemented by a “small deck of class‑specific cards” that students make themselves.^[2]

Guides consistently warn against creating huge numbers of custom cards, suggesting limits like 5–10 new custom cards per block to keep review burden manageable.^[1] That advice reflects the same issue seen with pre‑made decks: the scheduler will treat every mature card as a long‑term commitment. Whether a card came from you or a community deck, once it is mature you will see it for years.

Why do many students end up with a hybrid anyway?

Because each pure strategy has real downsides. Relying only on pre‑made decks can leave gaps in school‑specific material or your own mistakes and wrong‑answer learnings, while writing everything yourself is rarely feasible during busy pre‑clinical blocks. Many students therefore use AnKing (or a similar comprehensive deck) for baseline coverage and then maintain a separate, smaller deck for school‑specific and high‑yield custom cards.^[4][1][2]

This hybrid model also helps when you turn to Step 2 CK, since some decks like the AnKing Step deck intentionally span multiple exams, including portions of Step 3 content.^[2] Your own cards can then fill in clerkship‑specific nuances that large decks do not cover.

How do you avoid Anki card overload with AnKing, Zanki and similar decks?

The main guardrails against overload are: suspending most cards by default, unsuspending only what matches your current lecture or video, and capping how many custom cards you add per day.^[4][1][3][2] Using tags instead of many small decks also keeps scheduling efficient and avoids context‑based guessing that weakens memory.^[5]

Multiple guides describe students “crushed” by hundreds of daily reviews after unsuspending too many cards too quickly, especially entire organ systems at once.^[1] The core idea is that Anki will faithfully serve whatever load you feed it; you have to deliberately keep that load manageable.

What does suspending and unsuspending by lecture actually look like?

Workflows are often described as: watch or read a resource → search the corresponding tag in Anki → unsuspend only those cards that match that lecture or topic.^[4][1][3][2] This aligns your reviews with what you just learned and keeps each day’s new card count tied directly to your study schedule.

Why do experts recommend tags over lots of small decks?

Anki’s own documentation discourages creating many small decks for narrowly defined topics and instead recommends using broader decks organized with tags.^[5] It notes that lots of little decks can cause you to see cards in predictable clusters, making it easier to guess answers from context and leading to weaker memories.^[5]

Tags allow you to classify cards by topic, resource, or lecture and then filter or search them as needed.^[5] You can also create temporary filtered decks from tags when you occasionally need focused review for a test, while keeping most of your content mixed for stronger recall.^[5] That approach matches how AnKing and other big Step decks are structured, with extensive tagging to major resources.^[4][1][3][2]

How many custom cards is “too many”?

One 2026 comparison suggests limiting custom cards to roughly 5–10 per block to avoid review overload.^[1] While that exact number will not fit everyone, the principle is general: creating hundreds of extra cards during each block, on top of a large pre‑made deck, will quickly produce daily reviews in the hundreds or more.^[4][1][2]

This is especially important for high‑yield wrong‑answer learning. Many students want to turn every interesting explanation from a question bank into a card, but sources emphasize that question‑bank explanations and NBME wrong answers are among the highest‑yield content and not fully covered in big decks, so you should selectively create cards for the most critical takeaways, not every factoid.^[1]

What about image occlusion and diagrams in Anki — and how can Alma help?

Anki now supports image occlusion cards natively: you can take an image, cover parts of it and generate cards that ask you to recall what is hidden.^[5] That is particularly useful for visually dense subjects such as anatomy, neuroanatomy and diagrams of pathways.

How does Anki’s native image occlusion work?

Anki’s manual notes that version 23.10 and above supports Image Occlusion cards as a built‑in note type.^[5] You load or paste an image, draw shapes over the parts you want to hide, and Anki creates a card for each shape or group of shapes, prompting you to recall what is under the occlusion.^[5] These cards are especially suited to memorizing structures, pathways and labeled diagrams.

This built‑in support replaces the need for older third‑party add‑ons for many users. A separate open‑source project called Image Occlusion Enhanced also exists under the GNU AGPLv3 license, but it is distributed “without any warranty,” reflecting the usual disclaimers for community add‑ons.^[6]

How can Alma fit into a diagram-heavy Step 1 workflow?

Alma is not a question bank of real exam questions. It is a study tool that can work alongside Anki and other resources. In the Learning Hub it turns your uploads into vignette-style quizzes and mind maps, and its flashcards are scheduled with FSRS, an open spaced-repetition algorithm that Anki also offers as an option. Its Notebook can also turn selected text into an AI image, such as a cartoon mnemonic.

If you want more detail on how to combine Alma and Anki in practice, we cover workflows and tradeoffs in our piece on using Anki with AI tools.

When (if ever) should you import a Step 1 deck into another app — and what happens to your review history?

This is why several guides explicitly say that students with mature Zanki decks might reasonably stick with them rather than switching to AnKing, even though AnKing is otherwise recommended for new users.^[1] The same logic applies to moving between apps: at some point, your review history is worth more than the shiny features in a new platform.

What exactly do you lose if you move decks?

When you export and import decks between different platforms, your core note content typically transfers, but the receiving app may not be able to use the detailed review log that Anki creates to schedule cards. That history—when you saw each card and how you graded it—is central to how spaced‑repetition algorithms optimize review timing over the long term.^[7]

Anki, for example, stores decks and user statistics in a database format and uses that information to drive its spaced‑repetition scheduling over time.^[7] If another app relies on a different scheduling algorithm or data model, imported cards will generally not retain the same review intervals and may behave like newly added material.

How does Alma’s spaced repetition fit with Anki or Quizlet history?

If you decide to keep long‑term Step 1 review in Anki and use Alma mainly for short‑term intensive drilling of lecture‑specific content or AI‑generated quizzes from your PDFs, you avoid splitting your review history too much. You might, for example, maintain AnKing plus a small custom deck in Anki while also uploading lecture PDFs to Alma to auto‑generate quizzes and mind maps for pre‑class preparation or rapid post‑lecture consolidation.

If you want a broader overview of when it makes sense to add AI‑driven tools alongside your existing stack, you can read our guide to AI tools for medical school and where Alma fits.

How do AnKing, Zanki and home-grown decks line up with the official USMLE Step 1 content outline?

How should you use the content outline alongside Anki?

The USMLE explicitly recommends using the Step 1 content outline and physician task/competencies documents to prepare for the exam.^[8] A practical way to integrate this with Anki is to periodically audit: for each organ system or process in the outline, check which lectures, question banks and Anki tags you have actually covered and where gaps remain.

Can AI replace the official outline or question bank content?

This is also why Alma does not claim to be a question bank of real exam questions, and why we recommend anchoring your plan around official guidance from exam owners and established primary resources, then layering on Anki, Alma and other tools to implement that plan efficiently.

Frequently asked questions

Is AnKing really better than Zanki for Step 1 in 2026?

Sources from 2026 describe AnKing V12 as the preferred choice for most new students because it is actively maintained, aligned with current First Aid editions and consolidates content from Zanki, Brosencephalon, Pepper, Lightyear and other decks.^[4][1][2] Zanki is largely incorporated into AnKing and is not updated, so it is mainly reasonable to keep if you already have a mature Zanki history you do not want to reset.^[1][2]

Do I still need my own cards if I use AnKing?

Most students benefit from adding a smaller deck of custom cards even when using AnKing as a backbone.^[2] AnKing does not include every nuance from question‑bank explanations or NBME wrong answers, which are some of the highest‑yield learning opportunities.^[1] Limiting custom cards to something like 5–10 per block helps prevent overload while ensuring your personal weak spots and school‑specific content are captured.^[1]

Is image occlusion necessary for Step 1, or can I stick to text cards?

Image occlusion is not mandatory, but it is a powerful way to memorize diagrams, anatomy, and complex figures. Anki 23.10+ includes native Image Occlusion note types: you select an image, cover structures with shapes, and Anki makes a card for each occluded area.^[5] If your exam content involves many labelled diagrams, mixing in some image occlusion cards can improve visual recall.

Will moving my Anki deck into another app hurt my Step 1 prep?

It can. Moving cards into another app or deck can make it difficult to preserve the review history and scheduling that Anki uses to space your cards, which may leave imported material behaving like new cards.^[7] If you already have a large mature deck, one guide suggests that continuing with your existing maintained deck and adding new material selectively—rather than fully migrating—can help avoid resetting intervals and increasing your workload.^[1] For many students, it is safer to keep long‑term Step 1 reviews in one system and add other tools like Alma around that core rather than migrating everything. If you do want to bring a deck into Alma, its .apkg import keeps the deck tree, and review history, suspended and buried state, presets and tags can come across, so scheduling does not restart from zero. Alma can also export a deck back to .apkg, with sub-decks and pictures.

References

1. Best USMLE Step 1 Anki Decks 2026: AnKing vs. Zanki
2. Best Spaced Repetition Platforms for Medical School (USMLE Step 1, 2, 3 Prep)
3. What are the Best Premade Preclinical Anki Decks for Medical School?
4. Best Anki Decks for USMLE Step 1 (2026 Guide) — MedBoardTutors
5. Adding/Editing - Anki Docs
6. image-occlusion-enhanced/README.md at main · glutanimate/image-occlusion-enhanced · GitHub
7. Anki - Wikipedia
8. Step 1 Exam Content | USMLE