You have probably seen the "Flashka method" on TikTok: medical students turning their anatomy courses into flashcards, lectures recorded and transcribed in seconds, quizzes generated by AI. Behind the name, there is a flashcard app and two proven study techniques. There is also a trap the videos do not show. Here is what the Flashka method really is, what studies say about each of its steps, and how to apply it all the way to exam day.
- The Flashka method was not published by researchers: it is the name videos give to a way of studying with the Flashka app.
- It rests on two solid techniques: testing yourself with flashcards, and reviewing them at intervals thanks to spaced repetition.
- Flashcards generated for you help you remember less than flashcards you write yourself.
- Flashcards are for memorizing. For an exam, you first need to understand the course.
What is the Flashka method?
Flashka is an AI flashcard app published by Flashka OÜ. It was created in 2023 in Tallinn, Estonia, by former students of Bocconi University and the Politecnico di Milano, and claims more than a million students. According to its website and its App Store listing, you upload your notes, PDFs, photos or slides, highlight what matters, and the AI turns them into flashcards, "image occlusions" (the labels of a diagram hidden so you can test yourself on them), quizzes and mock exams. Spaced repetition decides when each card comes back, and an AI tutor, Professor Ka, explains concepts on demand. The app can also transcribe the audio recording of a lecture.
The "Flashka method" is the name many TikTok videos, in Spanish, Italian and French, give to the way they use it. They mostly feature medical and biology students. Some of these videos are paid partnerships, flagged with "adv" or #flashkapartner.
The 4 steps of the Flashka method
As it appears in the videos, the method comes down to four steps.
- Upload your course: a PDF, slides, photos of your notes, or a recording of the lecture, which the app transcribes.
- Highlight what matters: the AI turns each highlighted passage into flashcards, and each diagram into an image occlusion.
- Review your flashcards with spaced repetition: the algorithm brings each card back right when you are likely to forget it.
- Test yourself: quizzes and mock exams generated from your flashcards, with an explanation for each mistake.
Since version 5.0, released in August 2026, Flashka also offers a plan leading up to the exam: you enter the date, the tools you want to use and the days you want to study, and the app spreads flashcards and quizzes out until exam day.
Does the Flashka method work?
Mostly, yes: its core steps rely on the best-documented learning techniques. But there are two big caveats.
Flashcards make your memory work
A flashcard forces you to pull up the answer before you see it. Researchers call this practice testing. In 2006, Roediger and Karpicke had students read texts, then either reread them or test themselves on them. One week later, the students who had tested themselves remembered much more. A 2017 meta-analysis by Adesope and colleagues, covering 272 results, confirms that practice tests beat rereading.
Image occlusion applies the same principle to diagrams: hide the labels and recall them, instead of looking at the diagram one more time.
Spaced repetition delivers
In 2009, Kornell compared two ways of studying flashcards: all in one block, or spaced out at intervals. Spacing worked better for 90% of participants, yet 72% thought cramming had worked better for them. Cepeda and colleagues, who pooled more than 300 experiments in 2006, also show that the right gap between two reviews grows with the time left before the test. An algorithm that decides for you when each card comes back applies this finding with no effort on your part.
The trap: flashcards you did not write
This is the caveat the videos do not show. In 2023, across six experiments, Pan and colleagues compared students who wrote their own flashcards with students who studied premade ones, then tested them two days later. Writing your own flashcards gave a clear advantage for remembering (an effect size of 0.45), and also for applying what you learned to new questions (0.29).
AI-generated flashcards are premade flashcards. Highlighting keeps part of the work, since you choose what matters, but the AI writes the questions and answers for you. User reviews also point out flashcards that are sometimes too similar to each other or not very relevant. Go back over your flashcards, delete duplicates and rewrite the unclear ones: that is also what makes them stick.
Memorizing is not understanding
A flashcard tests an isolated fact: a definition, a date, the name of a muscle. That works very well for anatomy, vocabulary or formulas. But an exam often asks you to reason, connect concepts or write out answers, and a flashcard will not teach you a chapter you have not understood. Memorizing answers to questions you do not understand gives you a feeling of mastery that does not hold up on exam day.
Recording your lectures and having them transcribed: a good idea?
Having a lecture transcribed helps you catch up on what you missed, especially when the teacher talks fast. But reading a transcript is still rereading, the technique Dunlosky and colleagues ranked among the least useful in 2013. A transcript is raw material: it does not make you remember anything until you turn it into questions. And before you record a lecture, ask your teacher for permission: many schools require it.
How to apply the Flashka method, with or without an app
The useful principles of the method do not depend on any app.
| Step | What you do | Why it works |
|---|---|---|
| 1. Understand first | Active reading, chapter by chapter | You struggle to remember what you have not understood |
| 2. Write your own flashcards, or edit the AI's | One question per card, in your own words | Writing your own flashcards helps you remember better (Pan et al., 2023) |
| 3. Test yourself without looking | Answer before you flip the card, out loud or in writing | Retrieving the answer makes it stick (Roediger and Karpicke, 2006) |
| 4. Space it out | Review each deck a few days apart, until the exam | Spacing beats cramming (Kornell, 2009; Cepeda et al., 2006) |
| 5. Practice the exam format | Exercises, past exams, essay questions | The exam will not ask you the questions on your flashcards |
The first row is the one the method skips. Our guide on how to make a study guide shows how to understand and summarize a chapter before memorizing it, and our guide on how to create a study plan shows how to spread it all out until the exam.
The Flashka method, exam edition: Fastudy
Fastudy builds on the same findings, testing yourself and spacing out your reviews, but starts with the step flashcards skip: helping you understand your course, chapter by chapter, all the way to exam day.
- You say what you are preparing for: a test, a midterm or final, an entrance exam or a resit, with the date, the subject and your chapters.
- You add your course as PDF, Word, PowerPoint or photos, plus past exams if you have them: they help aim at the format and level of your exam.
- Fastudy builds your plan: each chapter is split into lessons of a few minutes, spread out until exam day. Missed a lesson? The plan adjusts on its own.
- George writes each lesson from your course: you read it page by page, with key terms explained. You understand before you memorize.
- You test yourself at the end of each lesson: multiple choice, true or false, fill in the blanks, steps to put in order. Each exercise is corrected instantly, and the ones you got wrong come back right after.
- You come back to it whenever you want: "Test myself" gives you a lesson's exercises again, in a different order.
At every step, George, Fastudy's mascot, answers your questions about the lesson and can quiz you to check you have understood. You can start for free, no card needed.
Flashka or Fastudy?
The two tools do not do the same job. On Flashka's side, the table only includes what its website, App Store listing and release notes say as of October 2026.
| Flashka | Fastudy | |
|---|---|---|
| Starting point | Your documents, which you highlight | Your exam: goal, date, subject and chapters, then your course |
| What you get | Flashcards, image occlusions, quizzes and mock exams | A plan of short lessons until exam day, each lesson written from your course |
| Understanding the course | Professor Ka explains a concept when you ask | Each chapter is explained in lessons, page by page, and George answers your questions |
| Memorizing | Flashcards with spaced repetition, its strong point | Corrected exercises at the end of each lesson, mistakes asked again right after, "Test myself" on demand |
| Exam date | A plan of flashcards and quizzes until the exam, since August 2026 | At the center of the plan, which adjusts if you fall behind |
| Price | Free with a daily limit, paid subscription | Free to start, Pro plan monthly or yearly |
The two work well together. If you already understand your course and still have a lot of details to memorize, like anatomy diagrams or vocabulary, flashcards with spaced repetition are the right tool. If you first need to learn the course, or the exam asks you to reason more than recite, start with lessons and exercises drawn from your course. That is what Fastudy does.
Frequently Asked Questions
What is the Flashka method?
It is the name TikTok gives to a way of studying with the Flashka app: upload your course (PDFs, photos, slides or an audio recording), highlight what matters so the AI turns it into flashcards, review them with spaced repetition, then test yourself with quizzes and mock exams. It is not a method published by researchers, but it relies on two well-studied techniques: testing yourself and spacing out your reviews.
Is the Flashka method effective?
Its core steps are: testing yourself helps you remember better than rereading (Roediger and Karpicke, 2006; Adesope et al., 2017), and spacing out your reviews gives better results than going over everything in one block (Kornell, 2009; Cepeda et al., 2006). There are two limits: premade flashcards help you remember less than flashcards you write yourself (Pan et al., 2023), and flashcards do not replace understanding the course.
Should you write your own flashcards or generate them with AI?
Writing them yourself helps you remember better: in the six experiments by Pan and colleagues (2023), flashcards written by the students gave better results two days later than premade ones. AI saves you time on a long course. A good middle ground: generate the flashcards, then go through them, delete duplicates and rewrite the unclear ones in your own words.
Is Flashka free?
According to its App Store listing, Flashka is free to download and offers in-app purchases. The free version has a daily limit: 50 interactions a day in 2024, according to Bocconi University. What the free version includes and what the subscription costs can change: check them in the app before you pay.
Can you use the Flashka method without the app?
Yes. Understand each chapter first, write flashcards with one question per card, answer before you flip them, and review them a few days apart until the exam. Paper flashcards sorted into several piles based on how well you know them do the same job as an algorithm, with more organizing on your part.
What is a good Flashka alternative for exam prep?
If you first need to understand your course before an exam on a set date, Fastudy is built for that: you enter the date, the subject and your chapters, add your course, and Fastudy turns it into a plan of short lessons until exam day, with corrected exercises and George to answer your questions. You can start for free. To compare other flashcard tools, see our Quizlet alternatives.
Useful resources
- Create my study plan with Fastudy
- Pan, S. C. et al. (2023). User-Generated Digital Flashcards Yield Better Learning Than Premade Flashcards. Journal of Applied Research in Memory and Cognition, 12(4)
- Roediger, H. L. & Karpicke, J. D. (2006). Test-Enhanced Learning. Psychological Science, 17(3)
- Kornell, N. (2009). Optimising Learning Using Flashcards: Spacing Is More Effective Than Cramming. Applied Cognitive Psychology, 23(9)
- Cepeda, N. J. et al. (2006). Distributed Practice in Verbal Recall Tasks: A Review and Quantitative Synthesis. Psychological Bulletin, 132(3)