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Your study assistant, designed for precision
See how Proppi turns your course materials into precise, citation-backed answers.
Built for precision. Not another chatbot.
Proppi learns your field's unique style, calculates with precision, and speaks your subject's language.
Style Extractor
Upload your documents or references. Proppi automatically learns notation, sign conventions, and formatting — then answers how you'd expect.
Symbolic Scan
Answers are derived through symbolic processing and verified step-by-step. No hallucination — every result is grounded in your sources.
Domain-Aware
Engineering, physics, or finance — Proppi knows your domain's conventions and never mixes them up. Organized sources live in your library view.
Vision Mode
Paste a screenshot or upload a photo of a problem directly. Proppi reads it, interprets it, and solves it in your style.
Multi-Pass Reasoning
Complex problems get broken into sub-steps, each verified independently before the final answer.
Citation Tracking
Every claim links back to the exact page and paragraph. Hover any citation for a glass preview — click to see the full source.
How Proppi Works
From upload to answer in under a minute.
Create a Project
Set up a project for each course. Upload past exams, homework solutions, lecture notes, and textbook chapters.
Proppi Learns Your Style
Proppi automatically extracts notation rules, sign conventions, and formatting preferences from your sources.
Ask Anything
Type a question or paste a screenshot. Get precise, citation-backed answers that mirror your course materials.
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Upgrade to ProCommon questions
ChatGPT has broad knowledge but hallucinates freely. Proppi has zero internal knowledge by design — it only knows what's in your uploaded sources. This constraint, combined with automatic style extraction, makes it precise and consistent.
PDF, DOCX, PPTX, XLSX, TXT, and Markdown files for document ingestion. For screenshots and vision mode, we support JPEG, PNG, GIF, and WebP.
When you upload any source file, Proppi automatically analyzes notation patterns, significant figures, sign conventions, and formatting preferences. Every file becomes both knowledge and style context.
Yes. Your documents are processed and stored securely with encryption. We never use your data to train models or share it with third parties. See our Privacy Policy for details.
Absolutely. Create a separate project for each course. Each project maintains its own source library and extracted style profiles, so conventions never bleed across subjects.
Yes. Proppi saves your sessions automatically. You can revisit past conversations, continue where you left off, or start fresh — all from the session history panel.
Yes. Free includes 150 credits/month, up to 3 projects, and 300MB storage. Pro includes 4,000 credits/month, up to 50 projects, and 10GB storage. One answered question uses 1 credit and one source upload uses 20 credits.
Yes. Proppi is fully responsive and works on any modern mobile browser. Upload files, ask questions, and browse your library on the go.
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Join thousands of students getting precise, citation-backed answers in their own notation style.