Heuristica is a learning platform made in Switzerland by a solo developer credited as Engin. Users turn a topic, PDF, YouTube video or other source into concept maps enriched with resources from Wikipedia, arXiv, Semantic Scholar, YouTube and websites, and into flashcards with spaced repetition, quizzes, study notes and summaries. An AI chat can answer questions about a document or video, and the site runs free tool pages for concept maps, mind maps, flashcards, study guides, lesson plans, quizzes and PDF and YouTube summaries. The homepage says it is powered by ChatGPT, Claude, Gemini and Qwen and claims 75,000+ learners, and a strip of university logos sits under the learner count, though the pages reviewed describe no institutional partnership.
Check the privacy terms before uploading study material. The pages reviewed do not describe how uploaded PDFs and videos are stored or used, the FAQ says an account is deleted by emailing the developer, and no company is named beyond the developer. AI-generated concept maps, quizzes and summaries can contain errors or invented sources, so check them against the original material, and treat generated essays and notes as study aids rather than work to hand in. The free plan is limited to one small model and 3 saved concept maps.
Basic is free, with the GPT-5.4 mini model, a maximum of 3 saved concept maps and limited functionality. Professional is $59.99 a year, shown as $5 a month with a 37% saving; the yearly view is the one displayed and the monthly price is not shown, so check it at checkout. It adds GPT-5.4, Claude 4.5 Haiku, Claude Sonnet 4.6, Gemini 2.5 Pro and Qwen 3, hundreds of saved maps, quizzes and flashcards, custom prompts and saved instructions, cross-format conversion, and collaboration and sharing. Cancellation is at any time.
