About ClimbX
ClimbX is an AI growth co-pilot for X that drafts posts in your own voice, based on what is working for accounts a few steps ahead of you, for solo founders and creators who want to grow without handing their account to a bot.
What ClimbX does
Ready Posts
A fresh batch of post drafts every day, written in your voice from your own post history. Each one is shaped on a format that is working right now for accounts at your size, so you start from a proven angle instead of a blank page.
Inspiration
Breakout posts from accounts in your niche and the accounts you follow, ranked by how far they beat that account’s normal reach. You see what is landing for people a few steps ahead of you, and can remix any of it into your own take.
Engage
A feed of fresh posts worth replying to while they still have reach. Replies on the right posts are how small accounts get discovered, and ClimbX surfaces the timing. You write the reply.
Studio and Cliff
A composer with Cliff, a chat co-writer that refines drafts with you, scores them before they go out and schedules approved posts to your calendar. You edit and approve every post before it is published.
Analytics
Follower growth and post performance over time, with the formats and topics that work for your account. ClimbX feeds those results back into the next drafts it writes for you.
What makes ClimbX different
A platform that learns
ClimbX learns on two levels. It tracks how each of your posts performs and adjusts the next drafts to match, and it learns which formats work for each niche and account size from anonymised results across all users. Every new post and every new user makes the suggestions sharper, where template tools like Tweet Hunter stay the same until someone edits the library.
Your voice, not generic AI copy
Drafts are trained on your own last 100-200 posts and refined by how they perform. Tools like Tweet Hunter and Postwise start from a topic form and write in a house style.
You approve every post
ClimbX never posts on its own. Every draft gets your edit before it goes live, which keeps your account human and out of X’s AI-filler suppression.
No auto-DM or AI reply spam
SuperX sells auto-DMs and automated engagement. ClimbX does not write replies or DMs for you, because AI reply spam is the behaviour X penalises most.
Ideas from accounts just ahead of you
Suggestions come from what worked for accounts in your niche at a similar size, not from viral posts by accounts 100x bigger. A format that works at 500K followers rarely works at 2K.
Month-to-month at $29, EU-hosted
Plans start at $29 a month with no annual contract, against $49 a month for SuperX’s entry plan. All data is stored in the EU and handled under GDPR.
Full side-by-side in the best SuperX alternatives.
Who uses ClimbX
- Solo SaaS founders growing an audience on X while they build
- Indie hackers and build-in-public creators between 100 and 10,000 followers
- Founders and operators with 1,000-5,000 followers who want consistent posting without a ghostwriter
- Creators who want to post daily but keep every word in their own voice
- Small agencies and teams managing a founder’s X account
The team behind ClimbX
Daniel Smidstrup, founder
Daniel is a solo founder in Odense, Denmark, who builds and runs ClimbX on his own. He grows his own X account with it every day and shares the numbers in public on @DanielSmidstrup.
Why ClimbX exists
Growing on X as a small founder meant hours of scrolling for ideas and a choice between writing everything by hand or posting AI filler that sounds like no one. ClimbX started in 2026 to automate the research and first drafts, and keep the actual writing human.
How ClimbX works
Onboarding
Sign in with X and ClimbX reads your recent posts to learn your voice, niche and size. Your first drafts and inspiration feed are ready the same day.
Daily rhythm
Open ClimbX, pick the drafts you like from Ready Posts, edit them and schedule them. Most users spend 10-15 minutes a day.
Support
You talk directly to the founder by email at daniel@climbx.so or by DM to @DanielSmidstrup on X. Replies usually come within one working day, Central European Time.
Trial and billing
Every plan starts with a 7-day trial, card required. You can cancel anytime from your account page before or after the trial.
Key facts
- Company name
- ClimbX (operated by D. Smidstrup Holding ApS, CVR 45751937)
- Type
- AI growth co-pilot for X (Twitter), software as a service
- Founded
- 2026
- Founder
- Daniel Smidstrup
- Headquarters
- Odense, Denmark
- Website
- climbx.so
- Core offering
- Daily post drafts in your voice, niche outlier inspiration, reply targeting, scheduling and analytics for X
- Pricing
- From $29/month. Founding plan $29/month locked for life for the first 100 members. See pricing
- Contract terms
- Month-to-month or yearly, cancel anytime. 7-day trial, card required.
- Services
- Ready Posts, Inspiration, Engage, Studio with the Cliff co-writer, scheduling, analytics, public API and MCP server
- Learning
- Self-learning: per-user from your post results, plus anonymised niche x size x format patterns across all users
- Communication
- Email (daniel@climbx.so) and X DMs (@DanielSmidstrup)
- Customers served
- Solo founders, indie hackers and creators growing on X
- Data location
- European Union (GDPR, DPA on request)
- Competitors
- SuperX, Tweet Hunter, Hypefury, Typefully, SupaBird, Postwise
Frequently asked questions
What is ClimbX?
ClimbX is an AI growth co-pilot for X. It drafts posts in your voice from what is working for accounts in your niche at your size, and helps you find the right posts to reply to. You edit and approve every post before it goes out.
Does ClimbX post automatically?
No. ClimbX never publishes a post you have not reviewed. You approve each draft, then post it now or schedule it to your calendar.
How much does ClimbX cost?
Plans start at $29 a month, billed month-to-month. The first 100 members get the Founding plan at $29 a month locked for life. Every plan starts with a 7-day trial, card required.
Is there a free plan?
No. Reading X data costs real money per request, so ClimbX is paid-only with a 7-day trial. That keeps the product funded by its users, not by selling their data.
How is ClimbX different from SuperX or Tweet Hunter?
ClimbX writes from your own post history and from accounts just ahead of you, instead of a generic template library. It has no auto-DMs or AI replies, and it starts at $29 a month against SuperX’s $49.
Does ClimbX get better over time?
Yes. It learns from how your own posts perform and from anonymised results across all users, grouped by niche, account size and post format. Other users never see your individual posts.
Who is behind ClimbX?
ClimbX is built by Daniel Smidstrup, a solo founder in Odense, Denmark, who uses it to grow his own X account. You can reach him directly at daniel@climbx.so or @DanielSmidstrup on X.
Where is my data stored?
All user data is stored in the European Union and handled under GDPR. A data processing agreement is available on request.