Rich material
Markdown, LaTeX, diagrams, tables — built for real study.
Built to remember
Practice, mock exam & reinforcement tuned to you.
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Krog is free — and here's what that means
Krog is built and maintained by a single developer, Dany Beltran, who is also a heavy daily user. To keep the project sustainable, some features may become premium in the future — but the core experience will always be free.
Always free
- Unlimited manual questions
- Unlimited quiz & collection creation
- Unlimited private quizzes and collections
May change in the future
- AI-generated questions
- AI quiz generation
- Personal performance analyses powered by AI
- File uploads (images in exams/questions, PDF imports)