PostPilot
for X
See your post's score before you hit send.
PostPilot lives inside the X composer and scores every post as you type — hook strength, specificity, and 79 engagement-killing patterns, caught while you can still fix them.
No account. No servers. Everything stays on your device.
Free forever
The feedback loop X never gave you.
Every tool for X works after the fact — schedulers, analytics, autopsies. PostPilot works in the only moment that matters: while you're still writing.
Real-time scoring
A 0–100 score updates with every keystroke, right under the compose box.
Hook analysis
Detects which of 20 hook types you're using — curiosity gap, data reveal, contrarian — and how strong it lands.
Governor warnings
79 patterns that suppress engagement, flagged with severity before you post them.
Specificity scoring
Vague claims get called out. Numbers and concrete details get rewarded.
AI rewrite
One-click improved version via Claude — your own API key, your own data.
Score history & drafts
Track published-post scores with a 7-day rolling average. Queue drafts with scores attached.
Pro — $5/mo
It learns what works for you.
Generic advice scores generic posts. Pro fingerprints your voice and your audience, then scores against them.
Voice fingerprinting PRO
Learns your writing style across 13 dimensions and personalizes every score.
Viral Post Analyzer PRO
Scores any post in your feed — every viral post becomes a lesson you can steal from.
3 rewrite variants PRO
Each variant targets a different hook type. Pick the angle, keep your voice.
Thread scorer PRO
Every tweet in a thread scored individually — the weakest link gets flagged.
Hook Library PRO
Your best-performing openers, saved automatically and remixable when you're stuck.
Learning engine PRO
Analyzes your past performance to find what your audience actually responds to.
The math
A tenth of the price. The one feature none of them have.
| Tool | Price | Scores as you type | Focus |
|---|---|---|---|
| PostPilot | $5/mo | ✓ in the composer | Post quality, before you send |
| Typefully | $12.50–100/mo | ✗ | Thread writing & scheduling |
| Tweet Hunter | $49/mo | ✗ | Inspiration & scheduling |
| Taplio | $49/mo | ✗ | Analytics & scheduling |
| Buffer / Hootsuite | $15–100/mo | ✗ | Multi-network scheduling |
Privacy
No servers.
Nothing to leak.
- All data lives in chrome.storage.local — scores, drafts, voice fingerprint, everything.
- Exactly two network calls: license validation and optional AI rewrites with your Claude API key.
- Uninstall and it's all gone. There is no PostPilot database to be breached.