You might be revising from your own notes for your final exams at school, or learning lecture slides for your first January exams at university. Either way, the material you learn from is already yours. Studyflash and Knowunity, the study app at knowunity.com, where pupils share their notes, both turn uploaded files into flashcards. This review compares what each app does with your files.
Our verdict: Studyflash is the better choice for turning your own notes, lecture slides and old exams into everything you study from. From the same four lecture presentations (130 slides) that we uploaded to both apps in September 2026, Studyflash made 258 flashcards and Knowunity 15. Studyflash can also model your mock exam on old exams you upload.
Studyflash and Knowunity compared
| Studyflash | Knowunity | |
|---|---|---|
| Flashcards from your files | 258 cards from the same files, and you set how many and which types | 15 cards, with no choice of amount or type |
| Mock exam | A Premium mock exam built on your own old exams | A format Knowunity sets, not your old exams |
| One exam, one place | One course holds your plan, material and mock exam together | Plan, mock exams and material sit on separate pages |
| Free plan | Flashcards, quizzes and chat with the AI tutor, all without ads | Core functions free, with ads inside the chat |
| Price | Free plan with no time limit; Premium's price shows in the app. See what each plan includes | Pro costs €83.99 a year on the web |
| Platforms and offline | Web and mobile apps, with offline study on your phone | Web and mobile apps, offline with Pro |
| Best for | Anyone with their own notes or slides who wants a full deck from them | Pupils without notes who want others' shared notes |
Prices and features checked on 16 September 2026. Prices vary by country and store.
Studyflash builds a full flashcard deck you shape, Knowunity makes a short fixed set
Studyflash is built to turn a whole course into a deck that covers it, shaped by settings you choose. After you upload PDFs, documents or photos of your handwritten notes, you choose how many cards you want and how detailed they are, from low to high. You also pick from six card types, including image occlusion, which hides the labels on a diagram you upload so you have to recall them. Studyflash then makes your flashcards in any of its 27 languages.
When you regenerate the deck, you can add a note on what to change. Cards you wrote yourself are kept. Each card then comes back for review on a schedule that follows how well you remember it.
Knowunity also turns uploads into cards, but from the same four lecture presentations it made 15 to Studyflash's 258. You could not choose how many cards or which types. Image occlusion was missing.
Studyflash builds your mock exam on your own old exams
Upload old exams or example questions and Studyflash copies their structure and question style into your mock exam; Knowunity's mock exams follow a school exam format it picks for you. Building one on your own old exams was not possible in our test.
In Studyflash, the questions come from every deck and source in the course, in eight types, including essays and calculations. Grading follows the scale your country uses, at school or at university. With no old exam to hand, you choose the number of questions, the time limit and the question types.
You can take a mock exam whenever you like, as often as you like.
Your plan, material and mock exam in one course, or spread across separate pages
Studyflash keeps your study plan, every deck and source, and your mock exam for one exam in a single course you name. You add each new lecture to it as it comes. The study plan lays the course out topic by topic, from an overview through each topic's cards and quiz up to mastery.
The plan follows the goal you set: a pass or the top grade. It suggests an order for the topics, but you don't have to follow it. Because Max, Studyflash's AI tutor, has read the whole course, you can ask him about any lecture in it.
When we used Knowunity, its study plan, mock exams and material each had their own page, none linked to the others.
Who should pick which app
If you have no notes of your own on a topic and want to read notes other pupils have already shared, Knowunity is the better pick.
- Your own notes or lecture slides: Studyflash turns them into a full deck at the amount, detail and card types you set. Spaced repetition then times every review.
- A mock exam shaped like the real one: Studyflash builds it on your own old exams.
- Everything for one exam in one place: Studyflash puts the study plan, every deck and the mock exam in a single course.
- Help that knows your course: Max, Studyflash's AI tutor, has read your whole course. He makes the material you ask for. He also builds a memory of how you learn.
How we tested
Maximilian S. from the Studyflash team tested both apps in September 2026. He uploaded the same material, unchanged, to each: four master's-level lecture presentations, 130 slides heavy on images and charts, with formulas, definitions and worked examples. The slides carried many notes a student had typed onto them. We looked at how many cards each app made and whether you can choose their number and type. We also checked whether a diagram became cards with parts hidden, and whether an old exam can be uploaded as the template for a mock exam.
Questions and answers
If you learn from your own notes and slides, yes: in our September 2026 test, Studyflash made 258 cards and Knowunity 15 from four lectures totalling 130 slides. In Studyflash, you also choose the card types and how many you get.
Yes, Knowunity's app and core functions are free to use, but the free version shows paid ads inside the chat until you pay for Pro. Studyflash's free plan has no ads and gives you a monthly allowance for generating new material; Premium makes generation unlimited and adds podcasts and mock exams.
On the web, Knowunity Pro is €83.99 a year. Studyflash has a free plan, and Premium's price shows in the app; the pricing page lists what the plans include.
If the material is your own notes and slides, no: Knowunity let us set neither the number of cards nor their types. Studyflash turns your notes and slides into a full deck you shape.
No. Knowunity sets the format of its timed mock exams itself and had no place for your own old exams when we tested it. Studyflash builds your mock exam on the old exams or example questions you upload, matching their structure and question style.
Knowunity is a study app built around notes that pupils share, while Studyflash gives you a full deck you shape from your own files and mock exams built from the old exams you upload. One course holds everything for a single exam: plan, material and mock exam.