Predict how your X post will perform before you post it
X assistant that integrates with Claude, ChatGPT and Cursor to research your niche, score AI-written posts and publish them on X
Stage
Not given
Startup
Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Free: unlimited estimates and 3 optimized posts per month. Pro (coming soon): $5/month for 100 optimized posts per month. Ultra (coming soon): $50/month for 1,000 optimized posts per month. Custom plans available by contacting sales.
Starter $9/month or $90/year (100 credits per month); Pro $29/month or $290/year (700 credits per month); Ultra $49/month or $490/year (1,500 credits per month). A post costs 1 credit, 2 with a first reply or link. Unused credits last 3 months. All plans include 14 days free with 50 credits.
Key features
Predicted impressions, likes, replies, reposts and shares
Algorithm score based on X's For You ranker weights
One-tap post optimization with preset edits
Context-aware optimization suggestions
Best time to post for your timezone
Runs in browser on any device
Private analysis on your device
No X account connection required
Compares multiple post variants
Based on X's official For You algorithm
Daily niche research: top posts for keywords and X trends
Weekly analysis of reference account and own account performance
Post scoring from 0 to 100 using TypeSafe's Jev judgment model
Automatic rewrites up to 3 rounds for posts below pass mark
Schedule posts up to 3 weeks in advance
Optional first reply with link below each post
Credit-based pricing: 1 credit per post, 2 with reply or link
Unused credits last 3 months
What makes it different
Tests over 1,700 preset edits automatically matched to your post type
Runs entirely in your browser without leaving your device
Based on X's official open-source For You algorithm weights
Free with unlimited estimates and 3 optimized posts monthly
Works on all devices with no app download required
Works inside your existing AI without a separate editor or new subscription
Runs no writing model; your AI writes, Kalen researches and scores
Nothing publishes without your explicit approval in chat
Scores posts against what works in your niche and your own best posts
Publishes through X's official API with optional first reply for links
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Kalen