Voice tutoring starts free.
Your own courses are the upgrade.

The tutor can talk through any subject for free, no card required, with a generous monthly allowance of voice minutes. Uploading your actual course material, so it can quiz you from your own slides instead of guessing, plus higher voice minutes, is what the paid plans unlock.

Free

$0

The voice tutor, no card required.

  • +Voice & text tutor, any subject (60 voice minutes/mo, 300 messages/mo)
  • +General knowledge answers
  • +Whiteboard notes, tables & practice questions (40 AI credits/mo)
  • +Choose a teaching style and language
  • +Tasks, notes & grade tracker
Included on sign-up
Most popular

Plus

$9/mo

Ground the tutor in your own courses.

  • +Everything in Free, with higher limits (120 voice minutes/mo, 1,000 messages/mo)
  • +Upload course PDFs & slides (15 files / 100 MB)
  • +Tutor answers grounded in your material, with citations
  • +400 AI credits/mo, covering flashcards, practice quizzes, study guides, AI Marking Feedback, whiteboard illustrations, grammar checker, AI detector & humanizer. Credits scale with how much you generate, see the breakdown below
  • +600-character grammar/humanizer/AI-detector checks

Premium

$19/mo

The full study toolkit.

  • +Everything in Plus, with higher limits (270 voice minutes/mo, 2,000 messages/mo)
  • +40 files / 300 MB, 1,400 AI credits/mo
  • +2,000-character grammar/humanizer/AI-detector checks
  • +Priority support

What can you actually do with AI credits?

One shared pool of credits, spent across everything the tutor generates for you. Here's what a normal month looks like on each plan.

Plus

400 AI credits/mo

A typical month

  • +3 flashcard batches (~50 cards each)
  • +3 practice quizzes (~20 questions each)
  • +4 study guides
  • +3 AI Marking Feedback reviews
  • +10 grammar/AI-detector/humanizer checks
  • +Everyday whiteboard notes & diagrams

≈ 312 of 400 credits used, doing all of that in the same month, with room left over.

Or, spending every credit on just one thing

  • flashcards400 cards
  • practice quizzes400 questions
  • study guides50 guides
  • AI Marking Feedback40 reviews
  • grammar/AI-detector/humanizer checks200 checks

Premium

1,400 AI credits/mo

A typical month

  • +10 flashcard batches (~50 cards each)
  • +10 practice quizzes (~20 questions each)
  • +15 study guides
  • +10 AI Marking Feedback reviews
  • +40 grammar/AI-detector/humanizer checks
  • +Regular whiteboard use, including a few AI-illustrated diagrams

≈ 1,100 of 1,400 credits used, doing all of that in the same month, with room left over.

Or, spending every credit on just one thing

  • flashcards1,400 cards
  • practice quizzes1,400 questions
  • study guides175 guides
  • AI Marking Feedback140 reviews
  • grammar/AI-detector/humanizer checks700 checks

Whiteboard notes, real photos, and reusing an existing interactive simulation are usually free (0 credits). Only AI-drawn illustrations and freshly generated interactives cost credits, so day-to-day whiteboard use barely touches the pool.