Simple, Transparent Pricing
Choose the plan that fits your writing journey. All plans include access to Delta, your AI writing coach.
Short Books
or $315/year (save 12.5%)
For manuscripts under 40,000 words
Up to 3 books in parallel
Full 3-phase analysis
Scene-by-scene feedback
Export reports
Medium Books
or $420/year (save 12.5%)
For manuscripts 40,000–100,000 words
Up to 3 books in parallel
Full 3-phase analysis
Scene-by-scene feedback
Export reports
Large Books
or $525/year (save 12.5%)
For manuscripts over 100,000 words
Up to 3 books in parallel
Full 3-phase analysis
Scene-by-scene feedback
Export reports
Frequently Asked Questions
Can I cancel anytime?
Yes, you can cancel your subscription at any time. Your access will continue until the end of your billing period.
What file formats are supported?
Story Theorem supports PDF, DOCX, and TXT files up to 150,000 words.
What languages are supported?
Story Theorem supports manuscripts in all languages natively. Whether you write in English, Spanish, French, German, Japanese, or any other language, Delta can analyze and provide feedback on your work.
Is my manuscript secure?
Absolutely. Your manuscripts are encrypted and never shared. We take your privacy seriously.