You asked about Note-taking
16 people built something like it. 4 are gone.
That is 29% of the ones whose fate we could settle, against 23% across the whole register. 2 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2021-01-01 | YCFathom The most flexible AI meeting notetaker ever built. · fathom.ai | still up |
| 2022-06-01 | YCKnowtex Making doctors 2x more efficient with AI note-taking & charge capture · knowtex.ai | still up |
| 2022-02-24 | snipd.com | still up |
| 2022-04-22 | sonero.ai | gone |
| 2022-01-25 | bit.ly | moved |
| 2022-02-24 | snipd.com | still up |
| 2023-05-23 | unskript.com | unverified |
| 2023-03-20 | magic.jxnl.co | gone |
| 2023-03-23 | tripnotes.ai | unverified |
| 2024-01-01 | AI-powered meeting notes and automations · circleback.ai | still up |
| 2023-01-27 | makelog.com | unverified |
| 2023-02-03 | rinahq.com | unverified |
| 2023-10-10 | useadminai.com | gone |
| 2023-01-01 | Developing long-lasting drug formulations 50% faster · persist-ai.com | still up |
| 2023-04-24 | dappergpt.com | still up |
| 2024-06-01 | We automate the person taking orders at drive-thrus with a voice AI · drive-thru.ai | gone |
| 2024-09-01 | YCRelvy AI AI powered debugging notebooks for incident response · relvy.ai | still up |
| 2024-01-01 | YCSpeck AI Notetaker that automates all your admin work · speck.sh | acquired |
| 2025-01-01 | YCCenote AI agents for conversational commerce · joincenote.com | still up |
| 2017-01-01 | YCTetra AI notetaker for phone calls · asktetra.com | acquired |
| 2025-06-01 | YCChar The AI notepad that knows and works for you · char.com | still up |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.