# Marc Köhlbrugge
Building since 2010. Not reviewed by Marc.
Page: https://mrrmaker.com/@marckohlbrugge
BetaList (2010) and WIP (2017); sold Tweet Photo for $30,000 (2020)
In their words: "Maker of BetaList, Startup Jobs, WIP, and other products." (marc.io)

## Numbers
- Revenue: about $135 MRR, Tweet Photo (● last reported Aug 2020)
- Total revenue so far: almost $1M, BetaList (stated · Dec 2020)
- Sold 1 product for $30K in total (sum of stated prices)
- Products: 41
- Building since: 2010

## Products
- Room AI (2023 →): running
- Startup Jobs (2018 →): running
- WIP (2017 →): running
- Highscore Money (2016 →): running
- BetaList (2010 →): running
- Tweet Photo (2018 – 2020): sold, sold to CreatorKit for $30,000
- AI Jobs: dates not stated in any source
- Bluesky Counter: dates not stated in any source
- Domain Book: dates not stated in any source
- Lora Gallery: dates not stated in any source
- M-U-L-T-I-V-E-R-S-E: dates not stated in any source
- Rclown: dates not stated in any source
- Reading List: dates not stated in any source
- SP Forums: dates not stated in any source
- Submit.co: dates not stated in any source
- Trademarc: dates not stated in any source
- Traits: dates not stated in any source
- Vitrine: dates not stated in any source
- Yay: dates not stated in any source
- PR.co: dates not stated in any source
- Story AI: dates not stated in any source
- Changelog: dates not stated in any source
- EatMore: dates not stated in any source
- Linkhyper: dates not stated in any source
- openmargin: dates not stated in any source

## Timeline
- Apr 2025: On Evil Martians interview: Rails, hacking, and Stripe as a scoreboard [stated]
- Jun 2023: Launched Room AI [stated]
- Aug 2020: Sold Tweet Photo to CreatorKit ($30,000) [stated]
- Jan 2019: On Founder interview about WIP, published on HackerNoon and syndicated by Bitcoin Insider [stated]
- Dec 2018: Launched Tweet Photo [stated]
- Sep 2018: Launched Startup Jobs [stated]
- Sep 2017: Launched WIP [stated]
- May 2016: Launched Highscore Money [stated]
- Jun 2015: On Mixergy interview: How BetaList is helping startups get their first users [stated]
- Dec 2010: BetaList: Featured by TechCrunch (11 Dec 2010) [stated]
- Dec 2010: Launched BetaList [stated]

## How sure
46 verified by someone other than Marc, 150 stated by Marc in public, 4 outdated. Read on 11 Oct 2026.

## Sources
- Marc Köhlbrugge | Maker of BetaList, Startup Jobs, WIP, and other products., marc.io: https://marc.io
- Marc Köhlbrugge (@marckohlbrugge) / X, marckohlbrugge.com: https://marckohlbrugge.com
- Projects | Marc Köhlbrugge, marc.io: https://marc.io/projects
- Stack | Marc Köhlbrugge, marc.io: https://marc.io/stack
- github.com: https://api.github.com/users/marckohlbrugge
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/user/marc.json
- Room AI – AI Interior Designer, roomai.com: https://roomai.com
- Loot — Collect your favorite things in real life, loot.photos: https://loot.photos
- Build in Public, buildinpublic.com: https://buildinpublic.com
- How I tricked TechCrunch into writing about my startup | Marc Köhlbrugge, marc.io: https://marc.io/betalist
- How I made $2,251 in 1 day with highscore.money 👾💸 | Marc Köhlbrugge, marc.io: https://marc.io/highscore-money
- The history of WIP | Marc Köhlbrugge, marc.io: https://marc.io/the-history-of-wip
- Tweet Photo got acquired | Marc Köhlbrugge, marc.io: https://marc.io/tweet-photo-acquired
- #buildinpublic | Marc Köhlbrugge, marc.io: https://marc.io/buildinpublic
- 10 years of BetaList | Marc Köhlbrugge, typefully.com: https://typefully.com/marckohlbrugge/10-years-of-betalist-Uq3vYQJ
- Marc Köhlbrugge (@marckohlbrugge), typefully.com: https://typefully.com/marckohlbrugge/rss.xml
- How BetaList is helping startups get their first users - with Marc Köhlbrugge - Business Podcast for Startups, mixergy.com: https://mixergy.com/interviews/marc-kohlbrugge-betalist
- Founder Interviews: Marc Köhlbrugge of WIP | Bitcoin Insider, bitcoininsider.org: https://www.bitcoininsider.org/article/55900/founder-interviews-marc-kohlbrugge-wip
- Rails, hacking, and Stripe as a scoreboard: Marc Köhlbrugge’s playbook—Martian Chronicles, Evil Martians’ team blog, evilmartians.com: https://evilmartians.com/chronicles/rails-hacking-and-stripe-as-a-scoreboard-marc-kohlbrugge-playbook
- Marc's Interview | Notion, rockets.notion.site: https://rockets.notion.site/Marc-s-Interview-96c81eef97504e7a81b34d5a0a7d2288
- Betali.st Gives Early Adopters A Heads Up | TechCrunch, techcrunch.com: https://techcrunch.com/2010/12/11/betali-st-gives-early-adopters-a-heads-up/
- This Guy Is Charging People For Every Character They Text, vice.com: https://vice.com/en/article/this-guy-is-charging-people-for-every-character-they-text
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/11800714.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/17966903.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/40224130.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/36365785.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/19269938.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/16836612.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/15019669.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/33967930.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/11995638.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/17490540.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/39366440.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/14743288.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/10078738.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/33064581.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/35861275.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/46441815.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/18676470.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/48746830.json
- news.ycombinator.com: https://hacker-news.firebaseio.com/v0/item/15709139.json
- Site checks on 2026-10-11, MRRMaker: https://mrrmaker.com/how-it-works#checks

Labels: "verified" means confirmed by someone other than the founder; "stated" means the founder said it in public. Method: https://mrrmaker.com/how-it-works