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Kaleidoscope 4

Kaleidoscope 4

Spot the differences, merge in seconds

Mac·Launched May 2023·0 upvotes·kaleidoscope.app

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ALIVEverified Aug 20, 2026 · HTTP 200

CohortClass of 2023

What it is

Spot the differences, merge in seconds

HTTP liveness

3 probes since Aug 20

Aug 20Aug 20

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

Aug 20, 2026
First probe — live
Alive · 200 OK

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Vitals

Upvotes

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Press

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Tags

mac artificial intelligence design tools developer tools software engineering website builder

Pulse Indexobserved activity

3 probes0 pressGitHub –Tranco –

Not enough observed signals for a Pulse Index (needs 2+ signal families).

Cohort survival · Class of 2023weekly

3,422 products launched in 2023 · 100% still active

3,422 active0 sunset

Still active

100%

Median lifespan

4.9y