Download the updated JackSparrow MCAT Anki deck and learn from a current medical student who used it how to install it, use it with Kaplan, manage 6,301 cards, and compare it with MileDown, AnKing, Aidan, and MrPankow.
JackSparrow MCAT Anki Deck: 6,301 Cards, Free Download & Review
The JackSparrow MCAT Anki deck is one of the most comprehensive free MCAT decks available, with approximately 6,301 cards covering Biology, Biochemistry, General Chemistry, Organic Chemistry, Physics, Psychology, and Sociology. It is especially popular among students using the Kaplan MCAT books because much of the updated deck is organized chapter by chapter.
JackSparrow is also very different from more concise decks such as MileDown. Instead of primarily asking you to fill in one missing word or fact, many JackSparrow cards expect you to recall and explain an entire concept. That makes the deck excellent for identifying gaps in your understanding, but it also makes it considerably more time-consuming.
I personally used MileDown for most of my own MCAT Anki studying and also spent some time using JackSparrow. Looking back, I wish I had started JackSparrow earlier because I liked how much information it covered. The problem was that some of the cards were so long and strenuous to work through that I never used the deck as much as I originally wanted to.
That experience is why I do not automatically recommend JackSparrow to every MCAT student. I think it is an excellent deck for the right person, particularly someone with several months to study who wants a very detailed content foundation. However, if you have a shorter timeline or find yourself spending so much time on Anki that you are neglecting practice questions, a more concise deck may be the better choice.
Download the Updated JackSparrow MCAT Anki Deck
Keep your existing direct Google Drive JackSparrow download link here.
I recommend using the updated deck posted by the original creator rather than downloading a random copy from another website.
Keep your existing link to the original JackSparrow2048 Reddit post here.
The updated version was released after the creator realized that a commonly circulated tagged version did not preserve all of the changes they had made to the original cards. The updated deck restored those edits and organized much of the content according to Kaplan chapters and Khan Academy Psychology/Sociology sections.
The creator stated that the updated version should contain approximately 6,301 cards.
My JackSparrow MCAT Deck Verdict
Best for: Students with several months to prepare who want extremely detailed content review.
Probably not best for: Students with only a few weeks remaining, students who already have a strong content foundation, or anyone who finds long Anki cards difficult to review consistently.
Biggest advantage: JackSparrow forces you to recall entire concepts instead of relying heavily on contextual clues.
Biggest disadvantage: The cards can be long, and completing thousands of them can create an enormous daily review burden.
My recommendation: I would consider JackSparrow one of the best choices for students who genuinely need detailed content review and have enough time to use it correctly. I would not choose it solely because someone online says that a larger deck is automatically better.
If I were starting my own MCAT studying again, I would probably begin JackSparrow earlier than I did. However, I would also be much more selective about which cards I kept active rather than feeling like I needed to complete every card simply because it was included.
What Is the JackSparrow MCAT Anki Deck?
JackSparrow is a community-created MCAT Anki deck associated with Reddit user JackSparrow2048.
The science portion was developed around the Kaplan MCAT review books and material originating from the older RebopBebop deck. The creator substantially modified, expanded, and reorganized that material.
One of the major advantages of the updated JackSparrow deck is its organization. Biology, Biochemistry, Chemistry, Physics, and Organic Chemistry material can generally be studied alongside the corresponding Kaplan chapters.
The Psychology and Sociology content follows the Khan Academy behavioral-science material and the detailed community document commonly called the 300-page Psych/Soc document.
This makes JackSparrow particularly convenient if your content-review phase already revolves around Kaplan and Khan Academy.
How Many Cards Are in JackSparrow?
The updated organized JackSparrow deck contains approximately 6,301 cards.
The creator provided reference totals of approximately:
- 2,266 Biology/Biochemistry cards
- 1,825 Chemistry/Physics cards
- 1,785 Psychology/Sociology cards
- Additional cards distributed throughout the collection
You may occasionally see a slightly different total after importing the deck.
For example, students have reported totals such as 6,289 or slightly above or below 6,300. This does not automatically mean your download is incomplete.
If you already have overlapping cards in your Anki collection, Anki may recognize existing notes rather than importing another identical copy. Different versions and note-count versus card-count displays can also create confusion.
Instead of focusing only on whether your number is exactly 6,301, check whether the major Biology/Biochemistry, Chemistry/Physics, and Psychology/Sociology portions were imported.
Why Is JackSparrow So Popular?
The biggest reason is depth.
A typical concise Anki deck might show you most of a sentence and ask you to remember one missing term.
JackSparrow frequently does something very different.
A card may ask you to explain an entire pathway, describe several characteristics of a process, compare two concepts, or list multiple related facts.
That requires substantially more active recall.
For example, there is a major difference between seeing:
The rate-limiting enzyme of glycolysis is _____.
and being asked:
Explain the major regulatory steps of glycolysis.
The first card gives you considerable context. The second forces you to reconstruct the concept more independently.
Neither card style is universally better. They simply serve different purposes.
The second approach is one reason JackSparrow can reveal knowledge gaps so effectively, but it is also the reason reviews can become exhausting.
My Experience With JackSparrow vs. MileDown
MileDown was the primary MCAT deck I personally used.
One of the biggest reasons was practicality. The cards were concise enough that I could consistently work through them without feeling like Anki was consuming my entire MCAT study schedule.
I also used some JackSparrow and immediately understood why so many students liked it. There was simply more information.
The problem was how long some of the cards could take.
I remember wanting the additional depth but not necessarily wanting every review to involve recalling a paragraph of information. Looking back, I wish I had begun JackSparrow earlier because I would have had more time to gradually work through the detailed cards instead of choosing efficiency later in my preparation.
This is also why I now think students should choose their MCAT deck partly based on time available, not just which deck contains the most information.
If you have four or five months, JackSparrow becomes much easier to justify.
If you have six weeks, attempting to complete more than 6,000 detailed cards may take time away from UWorld, AAMC questions, CARS, and full-length exams.
That tradeoff matters much more than whether one deck technically contains more facts than another.
JackSparrow vs. MileDown vs. Captain Hook
This is the comparison I think is most useful for students today.
| Deck | Approximate Size | Card Style | Best For | Main Drawback |
|---|---|---|---|---|
| MileDown | ~2,900 | Mostly concise cloze cards | Faster, efficient content reinforcement | Less comprehensive |
| Captain Hook | ~7,002 | Reformatted JackSparrow-based content | Middle ground between efficiency and depth | Still a large deck |
| JackSparrow | ~6,301 | Detailed traditional recall cards | Deep content mastery | Long and time-consuming reviews |
I personally think of these as three different approaches rather than three decks competing to be universally “best.”
Choose MileDown if:
You want a manageable deck, have less time, already understand much of the content, or want Anki to supplement rather than dominate your studying.
Choose JackSparrow if:
You want very detailed recall, have several months to prepare, and are comfortable spending substantially more time on Anki.
Consider Captain Hook if:
You like the idea behind JackSparrow but wish the material were somewhat easier to work through.
Captain Hook is particularly interesting to me because it addresses almost exactly what I wished existed when I was studying. I wanted more depth than MileDown but found the original JackSparrow format difficult to sustain. Captain Hook reorganizes JackSparrow-based content into a more manageable presentation.
Add internal link here to your Captain Hook article using anchor text: “Captain Hook MCAT Anki deck.”
What Subjects Are Included in JackSparrow?
JackSparrow covers essentially all of the content-heavy MCAT subjects:
- Biology
- Biochemistry
- General Chemistry
- Organic Chemistry
- Physics
- Psychology
- Sociology
- Laboratory techniques
- Equations
- Additional miscellaneous content
It is not a meaningful replacement for CARS practice.
CARS requires passage interpretation, reasoning, inference, identifying arguments, and evaluating evidence. Those skills need to be practiced through passages rather than memorized through thousands of flashcards.
What Are the JackSparrow Miscellaneous Decks?
The updated version contains several miscellaneous sections, including Biology/Biochemistry, Chemistry/Physics, and Psychology/Sociology miscellaneous cards.
Do not assume these are useless leftovers.
The creator explained that these sections contain cards added while studying Kaplan and Khan Academy material that had not yet been reorganized into individual chapter sections.
In other words, some important content is still located there.
I would not activate all of the miscellaneous cards at once.
Instead, finish the major chapter-based material and then gradually introduce relevant miscellaneous cards. If your practice questions reveal a weakness in a topic, search the miscellaneous sections for cards related to that concept.
That approach is much more manageable than suddenly adding hundreds of miscellaneous cards to your daily reviews.
Is There an Official JackSparrow 2.0?
This causes a lot of confusion.
The creator discussed eventually making a more polished 2.0 version that would further organize miscellaneous cards and simplify some of the longer material.
However, the commonly referenced official updated JackSparrow file remains the organized version associated with the original updated post.
I would therefore refer to the download in this article as the updated JackSparrow deck, not automatically as “JackSparrow 2.0.”
Several newer projects have modified JackSparrow content, but that does not make them official releases from the original creator.
How to Install JackSparrow
Download and install the official desktop version of Anki first.
Then download the JackSparrow deck file to your computer.
Inside Anki:
- Open File
- Select Import
- Choose the downloaded JackSparrow deck file
- Allow the import to finish
- Open the Anki browser and confirm that the major subject sections appear
Because JackSparrow contains thousands of cards, importing it can take longer than importing a small personal deck.
I strongly recommend making a backup of your current Anki collection before importing it, especially if you already have MileDown, RebopBebop, MrPankow, AnKing, Captain Hook, or another large MCAT deck.
Should You Suspend JackSparrow Before Starting?
For most students, I would.
Instead of allowing thousands of cards from every subject to immediately become available, suspend the entire collection first.
Then unsuspend cards as you study each subject or chapter.
For example:
- Read Kaplan Biology Chapter 1.
- Make sure you understand the main ideas.
- Unsuspend the corresponding JackSparrow cards.
- Learn those cards.
- Complete your scheduled reviews.
- Move on to the next chapter.
This keeps your Anki schedule connected to what you are actually learning.
It also makes it easier to remain selective.
If a card is extremely detailed, redundant, or not useful for your preparation, you can leave it suspended.
You do not have to complete every JackSparrow card to use JackSparrow effectively.
How Many New JackSparrow Cards Should You Do Per Day?
Your timeline matters more than any universal recommendation.
At approximately 6,301 cards:
- 25 new cards per day would take about 252 days to see every card.
- 50 per day would take about 126 days.
- 75 per day would take about 84 days.
- 100 per day would take about 63 days.
Those numbers are deceptive because they only count new cards.
Every new card you learn today creates future reviews.
That means doing 100 new cards per day does not simply mean answering 100 cards each morning. After several weeks, you can easily have hundreds of previously learned cards due in addition to the new cards.
I would rather see someone consistently complete 30 to 50 new cards while maintaining UWorld and passage practice than attempt 100 every day and eventually develop an enormous backlog.
My Recommended Four-Month JackSparrow Plan
If you have around four months, JackSparrow becomes much more realistic.
Months 1 and 2
Work through your main content review.
Read the corresponding Kaplan chapter and unsuspend the related JackSparrow cards.
Begin practice questions during this phase rather than waiting until every content chapter has been completed.
Month 3
Finish remaining high-priority content.
Begin relying increasingly on practice-question performance to determine which JackSparrow topics need extra attention.
Add miscellaneous cards selectively.
Month 4
Reduce the number of new premade cards.
Shift most of your attention toward AAMC material, full-length exams, CARS, and detailed review of mistakes.
Continue mature JackSparrow cards that remain useful.
Do not sacrifice official practice material simply because you feel obligated to finish every remaining premade card.
Can You Use JackSparrow in Three Months?
Yes, but I would be more selective.
Trying to finish all 6,301 cards while also completing content review, question banks, full-length exams, and CARS can create an unnecessary workload.
Start with weaker subjects and the chapter-organized material most relevant to your content gaps.
Continue practice questions throughout the process.
As your exam approaches, allow your question performance to decide what deserves more Anki attention.
Should You Start JackSparrow With Only Six Weeks Left?
I would usually not try to complete the entire deck.
Six weeks is approximately 42 days.
Even before considering reviews, completing 6,301 new cards during that period would require around 150 new cards every day.
That is not how I would want to spend the final six weeks of MCAT preparation.
At that point, I would use JackSparrow selectively for weak areas while prioritizing:
- AAMC questions
- Full-length exams
- CARS
- UWorld or another question bank
- Equations
- Amino acids
- Metabolism
- Laboratory techniques
- Psychology/Sociology distinctions
- Personal error cards
Anki should support your practice performance, not replace it.
Can JackSparrow Replace Kaplan?
I would not use JackSparrow as a complete replacement for learning content if the material is new to you.
Anki is much better at helping you remember something you understand than teaching a completely unfamiliar scientific concept from scratch.
For example, memorizing isolated facts about glycolysis is much easier after you understand why the pathway exists, what enters and exits, where regulation occurs, and how it connects with other metabolic pathways.
A good workflow is:
Learn → recall → apply
Learn the concept with Kaplan, Khan Academy, a class, or another trusted source.
Recall it with JackSparrow.
Apply it through practice questions.
Can JackSparrow Replace UWorld or AAMC Practice?
No.
This is probably the most important limitation of any MCAT Anki deck.
The MCAT does not simply ask whether you can define hundreds of scientific terms.
You need to interpret experiments, analyze graphs, understand passages, connect multiple concepts, eliminate plausible wrong answers, and manage your time.
JackSparrow can make the underlying information easier to retrieve.
It cannot reproduce the reasoning required by passage-based questions.
Start practice questions while you are still using JackSparrow.
When you miss a question because you forgot content, return to the relevant cards.
When you miss it because of reasoning, timing, or passage interpretation, doing another hundred flashcards may not solve the problem.
Should You Edit JackSparrow Cards?
Absolutely.
One of the biggest mistakes students make with premade Anki decks is assuming the cards are sacred.
They are not.
If a JackSparrow card asks you to recall too much information at once, split it into two cards.
If the wording does not make sense to you, rewrite it.
If an image would help, add one.
If the card tests information you already know extremely well and it is wasting time, suspend it.
Your final Anki collection should become increasingly personalized to your weaknesses.
Should You Use JackSparrow and MileDown Together?
I would not try to complete both decks in full.
There is considerable conceptual overlap because both are designed to cover the MCAT sciences.
Instead, choose one as your primary deck.
If you are using MileDown and realize that one topic is not detailed enough, you can borrow selected JackSparrow cards for that topic.
If you are using JackSparrow and certain cards become unnecessarily time-consuming, you can simplify them rather than starting another entire deck.
Add contextual internal link here to your MileDown article using the anchor text “MileDown MCAT Anki deck.”
Should You Use JackSparrow and MrPankow?
This depends on how you want to handle Psychology and Sociology.
JackSparrow includes its own substantial Psychology/Sociology section.
MrPankow is specifically designed around behavioral science and is popular among students who want a separate Psych/Soc-focused deck.
I would preview both styles and choose one primary Psychology/Sociology resource rather than automatically completing both in full.
Add contextual internal link here to your MrPankow guide using the anchor text “MrPankow MCAT Anki deck.”
Common JackSparrow Mistakes
Trying to finish every card
The goal is to improve your MCAT performance, not complete a digital checklist.
Adding too many new cards
An aggressive new-card setting can create a review burden that becomes impossible to maintain several weeks later.
Waiting too long to begin questions
Do not postpone UWorld or passage practice until JackSparrow is finished.
Memorizing without understanding
If you do not understand why an answer is true, find an explanation before repeatedly memorizing the wording.
Using too many decks
JackSparrow, MileDown, Captain Hook, AnKing, Aidan, and other large decks substantially overlap.
Pick a primary system and stick with it.
Refusing to edit premade cards
Change the cards when doing so makes them more useful to you.
Is JackSparrow Worth Using in 2026?
Yes, I still think JackSparrow is worth considering.
The deck is older, but Biology, Biochemistry, Chemistry, Physics, and the core concepts tested on the MCAT have not suddenly become irrelevant because newer Anki decks exist.
What has changed is that students now have more choices.
If you want shorter cards, there are better options.
If you want community-maintained updates and newer organization, there are better options.
If you want a very detailed free deck organized around Kaplan and you are comfortable with traditional recall cards, JackSparrow remains a strong choice.
That is why I would not ask, “Is JackSparrow outdated?”
I would ask:
Does the way JackSparrow teaches fit the way I study and the amount of time I have?
That is much more useful.
Frequently Asked Questions
How many cards are in the updated JackSparrow deck?
The original creator stated that the updated organized version should contain approximately 6,301 cards.
Is JackSparrow free?
Yes. The original creator shared the deck freely.
Is JackSparrow organized by Kaplan chapter?
Much of the Biology/Biochemistry and Chemistry/Physics content is organized around Kaplan chapters.
Does JackSparrow include Psychology and Sociology?
Yes. It contains a substantial Psychology/Sociology section associated with Khan Academy behavioral-science material.
Does JackSparrow cover CARS?
Not meaningfully. You should practice CARS primarily through passages.
Is JackSparrow better than MileDown?
JackSparrow is more detailed, while MileDown is considerably more concise. I would generally choose based on the amount of content review you need and how much time you have.
Is JackSparrow too long?
For some students, yes. That was one of the biggest difficulties I personally had with it. Students with longer timelines are much more likely to benefit from its depth without allowing it to consume their entire schedule.
Should I use all 6,301 cards?
No. Selectivity is completely reasonable.
Can I use JackSparrow with Kaplan?
Yes. This is one of the deck’s biggest advantages because much of the science material is organized around Kaplan chapters.
Can I use JackSparrow with UWorld?
Yes, and I think combining content reinforcement with practice questions is much more effective than relying on the deck alone.
Is Captain Hook basically JackSparrow?
Captain Hook is a separate community project built substantially from JackSparrow-based material. It attempts to reorganize and reformat the content into a somewhat more manageable review experience.
Should I switch from JackSparrow if I already have hundreds of mature cards?
Usually not solely because another deck is newer. Mature cards and existing review history have value. Switch only when there is a meaningful problem with your current system.
Final Thoughts: Should You Use the JackSparrow MCAT Deck?
JackSparrow remains one of the most comprehensive free MCAT Anki resources available, but comprehensiveness is not automatically the same thing as being the best deck for you.
I personally used MileDown more heavily during my MCAT preparation and only used some JackSparrow. Looking back, I wish I had started JackSparrow earlier because I appreciated the depth and probably would have benefited from more of it.
At the same time, I remember exactly why I did not use more of it.
The cards could be long and strenuous, and there is a point where spending another hour on Anki begins taking time away from the parts of MCAT studying that matter just as much, particularly practice questions and reviewing full-length exams.
That is why I would recommend JackSparrow most strongly to students who have enough time to use it gradually.
If you have several months, need substantial content review, like explaining concepts in your own words, and use Kaplan, JackSparrow is still an excellent option.
If you have a shorter timeline, already have a strong science foundation, or find yourself drowning in Anki reviews, choose something more concise or use JackSparrow selectively.
The best MCAT Anki deck is not necessarily the one with the most cards. It is the one you can consistently use while still leaving enough time to actually practice for the MCAT.