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Best AI study apps in 2026
Short answer
There is no single best one. To turn PDFs, EPUBs, slides, YouTube, the board and text into active practice, StudyH is the direct choice, though its app is in Portuguese for now. For total free control, Anki. For ready-made decks and games, Quizlet. RemNote joins notes and cards. Notion and Obsidian organize notes, but flashcards only come from templates or plugins.
By StudyH team · Checked on . Editorial comparison by StudyH; see the sources for current terms.
How to choose
Ask: is the content mine or the community's? Do I need real spaced repetition or just organization? Do I want to study a PDF I already have, or build a deck from scratch? Compare the limits and features you need on each product's official page.
| App | Best for | Limit |
|---|---|---|
| StudyH | Active cycle from PDFs, EPUBs, slides, YouTube, the board and text | Subscription for AI; web app in Portuguese |
| Anki | Total control of cards | No built-in AI; steep curve |
| Quizlet | Ready-made sets and game modes | Spaced repetition and AI in Plus |
| RemNote | Notes + flashcards | More PKM than exam prep |
| Notion AI | Organizing and summarizing | No spaced repetition or active recall |
| Obsidian | A notes base in files | Flashcards only through plugins |
Try StudyH with your own PDF
Create an account. The board and review are free; the AI is a subscription. The app is in Portuguese for now.
Questions
What is the best AI study app?
It depends. For your own PDF and Brazilian exams, StudyH. For free control, Anki. For ready-made decks, Quizlet.
Is there a free AI study app?
Anki is free on the computer. Quizlet and RemNote offer AI tools with their own terms. StudyH's AI is paid, with no lock-in and a 7-day guarantee; the board, materials and review are free.
Which one turns material into flashcards?
StudyH starts from PDFs, EPUBs, slides, YouTube, the board and text. In the others, cards are usually made by hand or come from community banks.