AI writing tools to detect, humanize, rewrite and check grammar
Translate one thought into ten social media dialects, running locally on your phone with no account or cloud.
Stage
Startup
Not given
Founded
2026
Not given
Based in
GB
US
Pricing model
Freemium
Freemium
Pricing
Free: unlimited AI Detector, 3 daily uses on writing tools, 5 of 9 humanizer modes, 5 of 8 rewriter tones. Starter $9.99/mo (or $7.99/mo annually): 30K words/month, every humanizer and rewriter mode, 500 words per process. Pro $19.99/mo (or $15.99/mo annually): 100K words/month, no per-request word
Free: 1 rewrite per day. GramBook Unlimited: $1.99 a week or $42 a year.
Key features
Unlimited free AI detector with no daily limit or signup required
AI Humanizer with 9 writing modes including Standard, Academic, Blog, Formal, and Simple
Statistical detection engine that processes text on own servers with no third-party sharing
AI Rewriter with 8 different tones
Grammar Checker tool included in all plans
Chrome Extension for in-browser humanizing and detection
Brand Voice feature for maintaining consistent tone across 1-3 voices depending on plan
Re-humanize function to generate genuinely different drafts at higher variation
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
Unlimited free AI detector with no daily limits, while competitors limit guests to 3 scans per day
Published accuracy rates with measured false-positive and false-negative rates instead of unverifiable claims
Integrated detect-then-fix workflow keeping flagged drafts in one tool instead of switching between products
Privacy-first approach with AI Detector processing text on own servers with no third-party access
Browser-first start with no extension setup or account creation required before first use
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
Coda One
GramBook