BackSitor

Simple, Transparent Pricing

Start free and upgrade when you're ready. Price and renewal terms are shown before purchase.

Free

Start your learning journey

Monthly credits
50/mo3 knowledge posters/mo
Learning Topics
Up to 10
Deep Research
Talk Show Generation
Web Search
20 / month
Diagram Editor
Interview mode
Personalized Memory
Code execution environment (desktop web)
$0Free forever
Current Plan

Starter

Unlock the full learning experience

Monthly credits
250/mo10 knowledge posters/mo
Learning Topics
Up to 500
Deep Research
Talk Show Generation
Web Search
100 / month
Diagram Editor
Interview mode
Personalized Memory
Code execution environment (desktop web)
First month offer
$9.9$4.9/ month
First month $4.9, then $9.9/mo
Get Started with Starter
Most Popular

Pro

Deep learning. For those serious about mastering.

Monthly credits
1,000/mo25 knowledge posters/mo
Learning Topics
Up to 500
Deep Research
Talk Show Generation
Web Search
Unlimited
Diagram Editor
Interview mode
Personalized Memory
Code execution environment (desktop web)
First month offer
$19.9$9.9/ month
First month $9.9, then $19.9/mo
Get Started with Pro

Secure checkout. Renewal terms are shown before purchase. No payment method is required to start free.

Frequently Asked Questions

Can I try Sitor before paying?

Absolutely. The Free plan includes 50 credits per month and up to 10 learning topics. No credit card is required.

What happens when I upgrade to Pro?

Pro includes 1,000 credits per month, up to 500 learning topics, web search, deep research, code execution on desktop web, and Sitor's advanced learning tools.

How do renewal and cancellation work?

Card subscriptions on sitor.ai renew automatically until canceled in Settings; cancellation takes effect at the end of the paid period. China web purchases made with Alipay or WeChat Pay are one-time and do not auto-renew. App Store purchases follow Apple's subscription rules.