ClimbX
climbx.so
AI co-writer for X that learns your voice and generates posts.
diff ~/p/daniel-smidstrup ~/p/sergiu-chiriac
Products, revenue & stack compared side by side.
Software engineer turned indie hacker behind AI Directories, TransClipper and ColdConvert
Both Daniel Smidstrup and Sergiu Chiriac are solo founders and build in public. They overlap in Marketing & SEO Tools, AI Builders and Directory Makers. Daniel Smidstrup has 2 products listed on IndieMakerList vs Sergiu Chiriac's 5. On revenue, Daniel self-reports $1K MRR (ClimbX, verified) (as of 2026-10) and Sergiu $7.7K in the last 30 days (AI Directories) (as of 2026). On X, Daniel has about 13K followers and Sergiu about 12K.
Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.
climbx.so
AI co-writer for X that learns your voice and generates posts.
daniellaunches.com
Transparent launch platform with permanent backlinks and real launch stats.
aidirectori.es
Done-for-you service that submits AI and SaaS tools to 100+ directories.
transclipper.ai
Transcribes and analyzes viral TikToks, Reels and Shorts to reveal their hooks and structure.
coldconvert.ai
One-time-purchase cold email tool with lead collection and automated sending.
backlinkrise.com
Link building and outreach service for higher search rankings.
No tools in common in their publicly listed stacks. See the indie maker tech stack.
No stack shared publicly.
No principles listed.
Daniel Smidstrup self-reports $1K MRR (ClimbX, verified) (as of 2026-10) and Sergiu Chiriac self-reports $7.7K in the last 30 days (AI Directories) (as of 2026). By these self-reported figures, Sergiu Chiriac's reported monthly revenue is higher. Figures are unaudited and may cover different periods or businesses, so treat them as rough indicators.
Daniel Smidstrup has 2 products listed (ClimbX and DanielLaunches); Sergiu Chiriac has 5 products listed (including AI Directories, TransClipper and ColdConvert).
Daniel Smidstrup hasn't shared a stack. Sergiu Chiriac uses Next.js, TypeScript, MongoDB, Prisma, Tailwind CSS and Stripe. They don't list any tools in common.
Daniel Smidstrup: not listed. Sergiu Chiriac: Portugal.
Daniel Smidstrup's start year isn't listed; Sergiu Chiriac started in 2024 (2 years indie).
Sergiu Chiriac is listed as bootstrapped; Daniel Smidstrup isn't tagged as bootstrapped on IndieMakerList.
Read the full story, timeline and links on Daniel Smidstrup's profile and Sergiu Chiriac's profile.