Invest in your intellect.
Start for free or upgrade to unleash the full power of native AI processing. Simple, transparent credits. No hidden fees.
- Access to all feature tools
- Bring Your Own API Key (BYOK)
- Local AI access (Ollama support)
- Ad-supported experience
- Full PDF Chat (20+ pages)
- Advanced Smart Summaries
- Auto MCQ Quiz Generator + Answers
- Auto Flashcards Generation
- Lecture Notes & Study Assistant
- Unlimited-style AI Tutor Chat (within credits)
- 100% Ad-free experience
What you can do monthly:
- ~400–600 AI chat messages
- ~400–500 PDF interactions
- ~500 mixed quizzes/flashcard sets
- Full workflow (PDF → Quiz → Flashcards)
- Everything in Premium
- Large PDF support (100+ pages)
- Advanced Research Mode
- Mind Map Generator
- Priority AI processing & faster responses
- Better reasoning model routing
Perfect for:
- Heavy study users & medical/law students
- University research & literature reviews
- Content creators & analysts
- Developers
Free by design.
We believe that premium education technology should not be locked behind massive paywalls. STURIO's core platform, workflows, and local AI tools are designed to be 100% Free.
When you upgrade to Premium, you aren't paying for arbitrary feature limits. You are strictly paying to cover the heavy cloud server infrastructure and expensive AI API costs required to instantly process your massive PDFs and generate dynamic quizzes.
How Credits Work
Our AI models run on a highly optimized custom routing engine. Instead of confusing you with complex token math, we use a simple credit system.
- 1 STURIO Credit ≈ 500 processing tokens
- Full PDF Session = 20–35 credits on average
Cost Control & Safety
We built STURIO to be predictable. We include a generous safe usage buffer in all paid plans so you never have to stress about running out of credits right before a big exam.
If you exhaust your massive monthly allocation, the system gracefully limits heavy generations until the next cycle—no surprise overage charges, ever.
How We Compare
See why students are switching to STURIO from expensive, outdated platforms.
| Feature | Your Best Choice STURIO + | Quizlet Plus | Studley AI |
|---|---|---|---|
| Price | $13.99/mo | $7.99/mo | $19.99/mo |
| Ad-Free | |||
| Full PDF Chat (100MB+) | |||
| YouTube Video to Notes | |||
| AI Mind Map Generator | |||
| Auto-Generate Flashcards | |||
| Custom Exam Simulator | |||
| Research Paper Analyzer | |||
| AI Language Tutor | Basic | ||
| Study Games Arcade (9+ Games) | Match Game | ||
| Gamified Quizzes (MCQ, True/False) | |||
| Virtual Study Pet (Gamification) | |||
| Interactive Workspace Widgets | |||
| Smart Essay & Writing Evaluator | |||
| Explain Complex Concepts (ELI5) | |||
| Pomodoro & Focus Timers | |||
| Ambient Study Music / Lofi | |||
| Personalized Learning Paths | |||
| Local AI Support (Privacy / BYOK) | |||
| Spaced Repetition Algorithm | Basic | ||
| Smart Lecture Summaries | |||
| AI Tutor Chatbot | Q-Chat (Limited) | ||
| Detailed Wrong-Answer Explanations | |||
| PPTX, DOCX, & TXT Support | |||
| Active Recall Workflows | Basic | ||
| Offline Support (Edge AI) | |||
Frequently Asked Questions
Everything you need to know about STURIO's pricing and credits.
Can I cancel anytime?
Yes, absolutely. There are no lock-in contracts. You can cancel your subscription at any time from your billing dashboard, and you'll retain access until the end of your billing cycle.
What is BYOK (Bring Your Own Key)?
On the Free plan, you can input your own OpenAI or Anthropic API keys. Your requests will be routed directly to them, meaning you only pay the raw API costs to those providers while using STURIO's UI for free.
What happens if I run out of credits?
STURIO has a built-in safety net. If you exhaust your 15,000 (Premium) or 60,000 (Pro) credits, you won't be charged extra. The system will simply rate-limit heavy generations until your cycle resets.
Do I need a credit card for the Free plan?
No. The Free plan is truly free forever. We do not ask for a credit card unless you decide to upgrade to Premium or Pro.
Stop studying harder.
Study smarter.
Join thousands of students who are already using STURIO to save hours every week and dominate their exams.