Write with the algorithm in view
Draft posts with a live score built around the signals X actually rewards — replies, bookmarks, reposts, likes, and reach.
TinkerClaw presents
GrowX
Write for the X algorithm. Grow on your own terms.
A private, native Mac app for serious X growth — scores your drafts against X's open recommendation signals, finds high-leverage replies, and makes your own performance usable.
One-time purchase. No subscription. Bring your own X and OpenRouter keys.
Native macOS
Private and local-first
The focused loop
Find conversations worth joining
Reply Radar surfaces early, relevant posts where a useful reply has a real chance to travel.
Learn from your own winners
Bring your best posts back into the writing loop: study their structure, reuse the pattern, and calibrate against your own history.
Inside GrowX
From first draft to a repeatable growth loop.
Each part of GrowX has one job: help you make a better decision about what to write, where to join in, and what to learn from next.
01 · Write
Know what your draft is missing before you publish.
Write with the signals that drive distribution in view. GrowX scores the draft as you work, then gives you focused ways to sharpen the hook, improve clarity, and create stronger variants.
- Live hook, reply, and bookmark signals
- Improve, polish, variant, and fact-check actions
- Draft, schedule, or publish from one workspace
02 · Reply Radar
Find conversations where a useful reply can travel.
Reply Radar brings early, relevant conversations into one view so you can spend less time searching the feed and more time adding something worth reading.
- Scan relevant posts without losing your writing context
- Open the source conversation when you need it
- Compose and refine a useful reply beside the opportunity
03 · Performance
Measure what the algorithm actually rewarded.
See reach, replies, bookmarks, reposts, and likes together—not as vanity totals, but as weighted signals that reveal which ideas and formats deserve another pass.
- Weighted engagement based on recommendation signals
- Plain-language insights from your recent posts
- Content-type breakdowns that expose repeatable patterns
04 · Winners Library
Turn your strongest posts into better starting points.
Keep a working library of the posts that performed best. Study the structure, fetch your latest results, and use a proven post as the base for a fresh draft without copying yourself.
- Rank winners by viral score and engagement
- Fetch your latest X posts when you are ready
- Send any winner back into the writing loop
Own the tool. Own the data.
No monthly plan between you and your work.
GrowX is a native macOS app. Your posts and context live locally; your AI and X usage run through keys you control.
One-time $99 lifetime license
Use on up to 3 Macs
Your X and OpenRouter keys stay yours
Local SQLite data and macOS Keychain storage
Get GrowX for $99Checkout and license delivery are handled by Polar.