# MarkInMinutes

> AI-powered grading assistant that helps educators grade student submissions in minutes, not hours.

## What is MarkInMinutes?

MarkInMinutes is an AI grading platform designed for professors, teachers, and students. It uses advanced AI to analyze student submissions against custom rubrics and provides detailed, constructive feedback—all while keeping educators in full control of final grades.

## Key Features

- **AI-Powered Grading**: Automated rubric-based assessment with detailed scoring rationale
- **Multi-Format Support**: Accepts PDF, DOCX, PPTX, XLSX, and code files
- **Detailed Feedback Generation**: Provides actionable improvement suggestions for students
- **Batch Grading**: Grade multiple submissions simultaneously
- **Consistency at Scale**: Ensures fair, consistent evaluation across all submissions
- **GDPR Compliant**: EU data processing, no AI training on your data
- **Multi-Language**: Supports English and German interfaces

## Who It's For

### Professors & Academics
- Grade theses, dissertations, case studies, and research papers
- Handle complex multi-document submissions (code + reports + presentations)
- Maintain consistency across large courses with multiple TAs

### K-12 Teachers
- Grade essays in German, English, History, Philosophy, and more
- Reclaim weekends lost to grading stacks
- Works with any Erwartungshorizont (German rubric format)

### Students
- Get pre-submission feedback to improve grades
- Understand rubric expectations before final submission
- 100% anonymous—professors never know you used it

## Pricing

- **Free Tier**: 5 gradings/month, no credit card required
- **Starter**: €9/month for 10 gradings
- **Pro**: €29/month for 50 gradings (most popular)
- **Max**: €79/month for unlimited gradings
- **On-Demand**: Additional gradings at €2 each
- Unused gradings roll over while subscribed

## How It Works

1. **Upload Assignment**: Add your rubric and assignment instructions
2. **Submit Files**: Upload student submission files (PDF, DOCX, XLSX, PPTX)
3. **AI Analysis**: Our AI evaluates against your rubric with evidence citations
4. **Review & Adjust**: Review AI suggestions, make final grading decisions
5. **Deliver Feedback**: Share detailed feedback reports with students

## Technical Details

- **AI Model**: Powered by Google Gemini (data not used for training)
- **Data Storage**: Supabase (PostgreSQL) hosted in EU (Frankfurt)
- **Hosting**: Vercel (frontend), Railway (backend API)
- **Authentication**: Supabase Auth with Google OAuth support
- **Payments**: Processed by Paddle (EU-based)

## Company Information

- **Company**: Libaty GmbH
- **Founder**: Ulrich Linnebank (Senior Lecturer at Frankfurt School of Finance & Management)
- **Location**: Heusenstamm, Germany
- **Founded**: 2025

## Contact

- **Website**: https://www.markinminutes.com
- **Email**: info@markinminutes.com
- **Privacy**: privacy@markinminutes.com

## Documentation Links

- Home: /
- Pricing: /pricing
- About: /about
- Contact: /contact
- For Professors: /for-professors
- For Teachers: /for-teachers
- For Students: /for-students
- Example Results: /examples/results
- Privacy Policy: /legal/privacy
- Terms of Service: /legal/terms

## Frequently Asked Questions

### What file formats does MarkInMinutes support?
MarkInMinutes supports PDF, DOCX, PPTX, XLSX, and common code file formats. You can upload multiple files per submission for complex assignments.

### Is MarkInMinutes GDPR compliant?
Yes. All data is processed in the EU (Frankfurt), encrypted in transit and at rest, and never used to train AI models. You can delete all your data at any time.

### How accurate is the AI grading?
Over 90% of AI-suggested grades align with expert human graders. The AI provides detailed rationale with evidence citations, and educators always have final say on grades.

### Can students use MarkInMinutes?
Yes! Students can use MarkInMinutes to get pre-submission feedback on their drafts. This helps them understand rubric expectations and improve their work before final submission.

### What happens to uploaded documents?
Documents are processed temporarily for grading and can be deleted immediately after. We don't store or use your content for AI training.