You asked about Note-taking

148 people built something like it. 36 are gone.

That is 26% of the ones whose fate we could settle, against 23% across the whole register. 7 were acquired.

Matching
183
Gone
26%
Median life
Acquired
7

Matching launches · 60 of 183

checked 8 hours ago · 250 probed today
LaunchedWhat it wasToday
2022-04-11
reflect.app
still up
2022-02-23
supernotes.app
still up
2022-05-24
museapp.com
moved
2022-06-08
feeting.app
moved
2021-03-17
wiki.dendron.so
still up
2022-03-27
getdrafts.com
still up
2022-06-21
dendron.so
still up
2021-01-01
The most flexible AI meeting notetaker ever built. · fathom.ai
still up
2021-03-06
critical-notes.com
unverified
2022-02-17
flomoapp.com
still up
2021-11-24
airgram.io
gone
2021-07-10
airclick.io
still up
2022-04-04
fuzzynote.xyz
gone
2021-10-07
git.bitmycode.com
still up
2022-04-05
getjotter.com
unverified
2022-01-01
An intelligent, visual knowledge base for learning complex topics. · heptabase.com
still up
2023-02-10
goodquestion.io
still up
2021-04-28
cinwell.com
still up
2023-08-09
kvak.io
still up
2022-06-20
smarkup.com
still up
2023-05-19
deepnotes.app
still up
2021-06-02
spiritnotes.com
still up
2021-10-20
membr.shiftlabz.com
unverified
2021-12-26
windofchange.me
gone
2010-06-01
WorkFlowy is a better way to manage information. It provides a simple… · workflowy.com
still up
2020-06-01
The all-in-one notebook for creatives to brainstorm, write, and plan… · cloverapp.co
acquired
2025-06-01
ChatGPT's memory feature in an open, portable format · epicenter.so
still up
2019-01-01
Note taking workspace for B2B sales teams · blitziq.com
gone
2022-06-01
Making doctors 2x more efficient with AI note-taking & charge capture · knowtex.ai
still up
2023-12-22
heynote.com
still up
2022-08-17
numpad.io
still up
2022-06-07
offline.cash
still up
2022-01-11
cloverapp.co
gone
2022-02-24
snipd.com
still up
2022-02-23
supernotes.app
still up
2021-01-30
nn.labml.ai
still up
2022-04-22
sonero.ai
gone
2022-11-27
lawrencehook.com
still up
2022-06-22
smarkup.com
still up
2022-05-07
ankify.krxiang.com
unverified
2021-04-19
starboard.gg
still up
2022-01-09
notrix.netlify.app
still up
2022-02-21
innos.io
unverified
2022-06-03
stenos.io
unverified
2022-03-18
zenflowchart.com
still up
2022-03-07
einote.com
still up
2022-09-20
tasktxt.com
still up
2021-09-22
noteship.com
still up
2021-12-01
burnernote.com
still up
2021-06-28
get21stnight.com
still up
2022-01-25
bit.ly
moved
2022-02-11
windi.app
gone
2022-10-27
apptorium.com
still up
2023-11-28
swaranotebook.com
still up
2022-05-13
todoboard.ca
moved
2022-07-03
desklamp.io
still up
2022-11-05
structpad.app
gone
2023-04-24
site.ducknote.app
still up
2021-06-02
mani.ai
unverified
2021-07-29
notes.cx
unverified

How this compares

Where they launched

share gone · line is the 23% average
  1. Product Hunt 1217%
  2. Show HN 9325%
  3. Y Combinator 3631%

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.

By year launched

share gone · line is the 23% average
  1. 2021 3628%
  2. 2022 4420%
  3. 2023 3628%

Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.

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.