# LongTerm Memory

> AI-powered study and exam preparation platform. Upload documents or web links, get AI-generated question-answer pairs, and retain knowledge long-term using spaced repetition scheduling.

## What is LongTerm Memory?

LongTerm Memory (longtermemory.com) is a SaaS web application that helps students and professionals prepare for exams and master complex subjects. It uses Retrieval-Augmented Generation (RAG) with OpenAI to automatically generate question-answer pairs from user-uploaded study materials, then schedules reviews using a spaced repetition algorithm for optimal long-term retention.

## Key Features

- **AI Question Generation**: Automatically creates contextual question-answer pairs from PDFs and web links using RAG + OpenAI
- **Spaced Repetition Scheduling**: Reviews are scheduled at scientifically optimal intervals (studies show 90%+ retention vs 20% with cramming)
- **Document Upload**: Supports PDF documents and web URLs as study sources
- **Personalized Study Plans**: AI generates a structured study plan per project
- **Study Sessions**: Interactive Q&A sessions with self-assessment (Again / Hard / Good / Easy difficulty ratings)
- **Progress Tracking**: Tracks answered questions, review queue, and new questions per session
- **Multiple Projects**: Organize study materials into separate projects
- **Passwordless Auth**: Magic link authentication — no passwords required

## How It Works

1. User creates a project and uploads PDFs or web links
2. AI processes the content and generates question-answer pairs
3. A personalized study plan is created
4. User starts study sessions: sees questions, self-assesses recall
5. Spaced repetition algorithm schedules next review based on difficulty rating
6. Over time, user builds long-term retention with minimal review time

## Pages

- [Home](https://longtermemory.com): Landing page with hero, demo, pricing, and FAQ
- [Login](https://longtermemory.com/login): Magic link sign-in / sign-up
- [Dashboard](https://longtermemory.com/dashboard): Manage projects and sources (requires auth)
- [Study Plan](https://longtermemory.com/study-plan/pr/:projectId): View generated Q&A pairs for a project (requires auth)
- [Study Session](https://longtermemory.com/study-session/pr/:projectId): Active interactive study session (requires auth)

## Pricing

Monthly and yearly billing available. All plans include a free trial. Pricing is dynamic — see [longtermemory.com/#pricing](https://longtermemory.com/#pricing) for current plans.

## FAQ Highlights

- **Supported formats**: PDF documents and web links (URLs)
- **AI accuracy**: High quality in most cases; users can report issues
- **Data privacy**: HTTPS/TLS encryption, no password storage, data never sold to third parties. Documents processed by OpenAI under their privacy policy
- **Auth method**: Passwordless magic link (email → secure link → signed in)
- **Payment**: All major credit/debit cards via Stripe. Pro-rata refunds, cancel anytime
- **Spaced repetition**: Science-backed technique scheduling reviews right before you would forget

## Technology

- Frontend: React 19, TypeScript, Vite, Tailwind CSS, shadcn/ui
- Backend: Laravel 12 (PHP), MySQL, Redis
- AI/ML: Python FastAPI, LlamaIndex, OpenAI, Qdrant vector database
- Storage: MinIO (S3-compatible)
- Payments: Stripe

## Contact

- Website: https://longtermemory.com
- Support: support@longtermemory.com