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Subscription
Basic
For everyday reading and learning.
$6.99per month
Everything in Free, plus:
- 500 AI uses every month
- Renews every month, not just your first 3
- Cancel or change plans anytime
ProRecommended
For deeper thinking and longer explorations.
$9.99per month
Everything in Basic, plus:
- 1,000 AI uses every month (2× Basic)
- Room to explain, question, and follow ideas further, every day
Premium
For when understanding becomes part of how you work.
$17.99per month
Everything in Pro, plus:
- 2,500 AI uses every month (5× Basic)
- Room for deeper questions, longer explorations, and heavy daily use
FreeFor 3 months after registration
Try InterStand on the text that makes you pause.
$0No card required
Register for free uses- 10 free AI uses per month for your first 3 months after sign-up; unused uses lapse each month
- Explain, Language Learning, Ask, and Summarize on selected text
- Follow-up questions in the context of your selection
- Elements and flashcards to keep what you learned