The best flashcard app for university is the one that tests you at the right moment and saves you time making the cards.
Exam season looks the same for a lot of students: 300 slides, a set of lecture notes, three past papers and the question of whether to write cards yourself or let AI build them. Then there is the app. Anki, Quizlet, RemNote and a dozen newer AI apps all promise that you will remember more.
This comparison helps you choose a flashcard app by the criteria that matter at university. acemate makes a study app itself. We describe every tool from its public documentation as of October 2026, and we say where other apps are the better fit.
Why flashcards work at university
Flashcards combine the two study strategies that come out best in research. A review of ten common learning techniques rated only two as highly useful: practice testing and spaced practice (Dunlosky et al., 2013). Summarising, highlighting and rereading ranked low.
Active recall means pulling an answer from memory before you see it. In a well-known experiment, students who were repeatedly tested on a text recalled 61 percent of it a week later. The group that repeatedly reread it recalled 40 percent, even though they had read it far more often (Roediger & Karpicke, 2006). A meta-analysis of 272 effect sizes confirms the advantage of practice tests over restudying (Adesope et al., 2017).
Spaced repetition means reviewing a card just before you would forget it, with the gaps growing longer each time. An analysis of 317 experiments found that spreading study out works better than cramming, and that the best gap grows with how long you need to remember something (Cepeda et al., 2006). A flashcard app works out those gaps for you.
What makes a good flashcard app
1. The scheduling algorithm
Most apps schedule reviews with a version of SM-2. The newer option is FSRS (Free Spaced Repetition Scheduler). In an open benchmark with around 10,000 Anki users, FSRS predicted recall better than Anki's SM-2 for 99.5 percent of collections (srs-benchmark). Claims about how many reviews an app saves you usually come from vendor marketing and have not been tested independently.
2. Cards from your own material
Many apps use AI to make cards from PDFs or slides. That saves hours. Still, check whether the app shows you where a card comes from. Otherwise you will learn a wrong answer very thoroughly.
3. Import and export
Your collection grows over several terms. An app that imports and exports Anki decks (.apkg) lets you switch later without starting from scratch.
4. Formulas, images and technical terms
In STEM subjects and medicine you need formulas, structures and diagrams on your cards. Test this with a real card from your course before you commit.
5. Language and privacy
Check whether the app uses your content to train its AI and where it stores your data. Copyright matters too: your lecturers' slides are protected, and some universities advise against uploading them to tools that train on what you enter (HM Munich). There is more on this in Is AI allowed at university?
Flashcard apps compared
| App | German interface | AI cards from your files | Scheduling | Anki import |
|---|---|---|---|---|
| Anki | ✓ | ✗add-ons only | FSRS or SM-2 | ✓native format |
| Quizlet | ✓ | ✓ | adaptive Learn mode | not stated |
| RemNote | ✗ | ✓ | SM-2 variant, FSRS optional | not stated |
| Brainscape | ✗ | ✓no PDF upload | self-rating from 1 to 5 | not stated |
| Repetico | ✓ | ✓ | built around your exam date | ✓ |
| Gizmo | ✗ | ✓ | automatic, method not named | ✓ |
| Knowt | ✗ | ✓ | adjustable intervals | Quizlet import only |
| Retain Cards | ✓ | ✓ | adaptive, method not named | ✓ |
| acemate | ✓ | ✓ | FSRS | ✓ |
As of October 2026, based on each vendor's public pages and app store listings.
Anki is open source and free on desktop, on the web and on Android. The iOS app is a one-off purchase. You can configure almost everything, there are thousands of shared decks and add-ons, and FSRS can be switched on in the deck options. Anki has no AI of its own. Since February 2026 its creator has been handing operations and open-source stewardship to AnkiHub step by step, and the core is meant to stay open source.
Quizlet has the largest library of ready-made sets, study games and a Learn mode that adapts to your answers. It adds AI features such as practice tests from uploaded material. Its AI chat, Q-Chat, was reportedly discontinued in 2025. Since February 2026, the lecture note app Coconote has also belonged to Quizlet.
RemNote combines notes, PDF annotation and flashcards in one app, so cards come out of your notes as you write them. FSRS is available as an optional scheduler.
Brainscape relies on self-rating: you score every card from 1 to 5. Its strength is curated decks for medicine, nursing and languages. You cannot upload PDFs directly, you paste the text in instead.
Repetico is German and plans reviews around your exam date. AI cards come from PDF or Word files. According to its privacy policy, its AI tutor runs on a self-hosted model at Hetzner in Germany and card generation on Mistral in France. Since July 2026 the free version is limited to a few card sets.
Gizmo turns studying into a game with lives, points and leagues, and imports sets from Quizlet and Anki. It is aimed mainly at UK school students and is available in English only. Its privacy policy says it may use personal data to train its AI in some cases.
Knowt presents itself as a free Quizlet alternative from the US, with study modes, practice tests and Quizlet import.
Retain Cards is also German. It reads formulas and handwriting in PDFs and photos, supports image occlusion and imports Anki decks. Its privacy policy allows anonymised cards and progress data to be used to improve its AI.
Write cards yourself or let AI make them?
Both have their place. Writing a card yourself means you process the material while you write. That takes time, and in the last two weeks before an exam you rarely have it.
AI-generated cards are ready in minutes. To make them useful, check three things:
- Each card asks one thing only.
- The answer matches your lecture notes, and you can look up where it comes from.
- You delete cards on topics that will not be in your exam straight away.
A good middle ground: let AI generate a first batch from the lecture, sort it, and add your own cards for the points where you get stuck in practice problems.
Switching apps without losing your progress
Anki decks (.apkg) are the most common exchange format. Repetico, Gizmo and Retain Cards import them, and so does acemate. If you are coming from Quizlet, Knowt and Gizmo offer an import. Export a backup before any switch, and test the import with a small deck before you move a whole term's worth of cards.
Which flashcard app suits you?
- You want full control and would rather not pay: Anki. Allow some time to learn it.
- You want ready-made sets and enjoy studying through games: Quizlet.
- You already take notes digitally: RemNote.
- You want a German app built around your exam date, with data in Germany: Repetico.
- You want cards, practice questions and mock exams from your own notes in one place: pick an AI study app that generates all three from your files and shows its sources.
Where acemate fits
acemate creates flashcards from your slides and notes (PDF, PowerPoint, Word). You can edit them and write your own cards, images included. Reviews are scheduled with FSRS, and you can import and export Anki decks. It also has practice questions with AI feedback, mock exams in the style of your past papers and a tutor that cites the document and page. The Knowledge Graph colours your course topics by your results. What acemate does not have: a library of other students' sets and a native mobile app (the web app works on your phone).
For a direct comparison with the two best-known apps, read acemate vs Anki and acemate vs Quizlet. For an overview of all AI study tools, see Best AI study tools for university students.
