Your copywriting assistant for Claude, ChatGPT and Cursor that gives your AI the method for each piece and reviews every draft.
Translate one thought into ten social media dialects, running locally on your phone with no account or cloud.
Stage
Not given
Not given
Founded
Not given
Not given
Based in
Not given
US
Pricing model
Freemium
Freemium
Pricing
Basic: $9/month or $90/year. Complete: $29/month or $290/year. 14 days free trial on either plan. Complete includes 1,500 credits per month that roll over for up to 3 months (up to 4,500 total). Credit packs available for additional usage.
Free: 1 rewrite per day. GramBook Unlimited: $1.99 a week or $42 a year.
Key features
Write with method for different content types (ads, pages, emails, posts, stories, offers)
Review drafts for AI voice, claims without proof, and missing CTAs before publishing
Save and reuse business brief (offer, buyer, voice, proof) across chats
SEO audit of live pages with on-page rules and AI search readiness
Check whether AI assistants cite your site versus competitors
Crawl sites up to 100 pages for SEO analysis
Identify unsourced claims, fake urgency, and ad policy violations
Unlimited use on Basic plan, no usage cap for writing and reviews
Runs entirely on device with no cloud or servers
Unlimited regeneration to get different versions
Works in airplane mode
Exports rewrites as customizable meme cards
Supports 16 languages with Apple Intelligence
What makes it different
No new app—works as a connector in the AI assistants you already use
Review checks every draft against your brief before you see it, fixing AI voice automatically
Engines measure against real results: live pages, AI citations, winning pages and ads in your niche
Five-minute setup, no technical skills needed; one connector URL in Claude and ChatGPT
Keeps all text local on your device with zero cloud processing or data transmission
Generates platform-specific content for each social network simultaneously
Free tier with one daily rewrite and no account setup
Works offline in airplane mode without any account or subscription
Copix
GramBook