Translate one thought into ten social media dialects, running locally on your phone with no account or cloud.
Know which headline wins before you spend traffic on it.
Stage
Not given
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Founded
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Based in
US
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Pricing model
Freemium
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Pricing
Free: 1 rewrite per day. GramBook Unlimited: $1.99 a week or $42 a year.
Free: $0/month with 5 rankings and 60 Claude-written options monthly. Creator: $19/month with 100 rankings and 2,500 options. Pro: $49/month with 600 rankings and 6,000 options. Agency: $149/month with 3,000 rankings and 20,000 options.
Key features
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
Head-to-head comparison of up to 200 variants
Bradley-Terry model ranking with calibrated odds
Honest uncertainty verdicts: Clear, Lean, Too close to call
Brand profiles to calibrate accuracy on your audience
Works for YouTube titles, subject lines, ad headlines, and article headlines
Accuracy measured on 9,841 held-out A/B tests
What makes it different
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
82% accuracy on clear calls, trained on thousands of real A/B tests never seen during tuning
Honest about uncertainty instead of always crowning a winner
56 times cheaper than Claude Sonnet while maintaining comparable accuracy
Custom calibration to your audience's behavior via brand profiles
Compare versions in both orders to cancel out model bias
GramBook
Click Oracle