Free AI writing enhancer that improves clarity, tone, and flow without sign-up
Know which headline wins before you spend traffic on it.
Stage
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Pricing model
Free
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Pricing
Free with 15 daily enhancements and 500 words per request. No sign-up or credit card required.
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
Natural flow enhancement
Tone adjustment with four registers: professional, casual, academic, friendly
Text simplification to cut jargon
Voice dictation and speech-to-text
No account required
Privacy-first with no text storage
Supports up to 500 words per request
15 free daily enhancements
Results in under 3 seconds
Works across browsers: Chrome, Firefox, Safari, Edge
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
Completely free with no hidden fees or mandatory upgrades
No sign-up or account creation required
Privacy-first: text never stored to disk or databases
Higher word limit and more daily uses than competitors
Preserves unique voice while improving clarity and flow
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