You asked about Recommendation System

47 people built something like it. 2 are gone.

That is 4% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.

Matching
47
Gone
4%
Median life
Acquired
1

Matching launches

checked 10 hours ago · 250 probed today
LaunchedWhat it wasToday
2023-01-01
AI Powered Product Discovery · rubberduckylabs.io
gone
2022-01-01
AI-native operating system for home service businesses · broccoli.com
still up
2020-06-01
Luminai is the AI platform for Health System Operations. · luminai.com
still up
2019-01-01
Bunkerhill is the agentic AI platform for health systems · bunkerhillhealth.com
still up
2023-06-01
AI Operating System for Private Market Investors · vectorshift.ai
still up
2026-06-01
Mass-produced AI strike systems and Counter-UAS · isengardindustries.com
still up
2021-01-01
The AI operating system for restaurants · tryperdiem.com
still up
2023-01-01
Metal is an AI-driven operating system for fundraising · metal.so
still up
2024-06-01
AI-native operating system for behavioral health clinics. · mdhub.ai
still up
2020-06-01
AI-native Operating System for Enterprise Ecommerce Companies · hypotenuse.ai
still up
2025-09-01
AI Operating System for Legal Teams · getlexi.io
still up
2025-01-01
AI powered operating system for distributors and OEMs · salespatriot.com
still up
2024-01-01
The AI Operating System For Modern Fleets. · joincarma.com
still up
2024-09-01
The high-performance file system that connects AI to data · archil.com
still up
2024-06-01
Capitol: the sovereign operating system for intelligence. · capitol.ai
still up
2022-01-01
AI-driven HVAC control system for improved energy performance · axross.co
still up
2025-01-01
AI-powered student information system for K-12 schools · scoutforschools.com
still up
2026-06-01
The AI-powered operating system for radiology networks · avocasystems.com
still up
2025-09-01
AI Operating System for Restaurants · zavopay.com
still up
2026-01-01
Modular AI-Commanded Drones for Defence · seeing-systems.com
still up
2024-01-01
The AI operating system for commodity operations · commodityai.io
still up
2022-01-01
The System of Action for Conversation Data · spinach.ai
still up
2021-06-01
Increasing restaurant profitability through our AI Operating System · bytekitchen.io
acquired
2026-01-01
A premier AI-native law firm & legal operating system for Startups. · vectorlegal.com
still up
2026-06-01
Autonomous AI defense system for cyber attack · nebusec.ai
still up
2026-06-01
Nervous System for Physical AI · 6thsense.dev
still up
2026-01-01
AI operating system for mega-scale satellite networks. · constellation.space
still up
2022-06-01
Operating system for HR in the AI era · aragorn.ai
still up
2024-09-01
Building AI systems that improve from experience. · canvas.inc
still up
2025-01-01
AI-Powered Hardware System Design Software · dalus.io
still up
2023-01-01
AI Operating System for Debt Settlement · retape.ai
still up
2024-06-01
Java-native multi-agentic AI operating system for enterprise · redouble.ai
still up
2023-01-01
AI-native operating system for analytics teams · turntable.so
gone
2026-01-01
AI operating system for modern medspas · tepali.com
still up
2018-06-01
Synkrino's AI, SATIS is a powerful, unbiased discovery system for… · synkrino.bio
still up
2026-06-01
AI Operating System for Wholesale Distribution · whitespacehq.ai
still up
2025-06-01
The agentic debugger for AI systems · fulcrumresearch.ai
still up
2026-01-01
The AI operating system for the built world · autositu.com
still up
2026-01-01
AI operating system for commercial loans · proximitty.ai
still up
2026-06-01
The AI Operating System for Auto Shops. · trycarsignal.com
still up
2026-06-01
Infrastructure for Physical World AI Agents · mireye.com
still up
2024-01-01
AI system design tools for dev teams · agenticlabs.com
still up
2022-06-01
AI Models for GIS · buntinglabs.com
still up
2024-09-01
AI Operating System for Pre-construction · permitportalapp.com
still up
2025-09-01
The AI operating system powering home services businesses · bravi.app
still up
2021-06-01
AI workflow engine for reliable systems · miniloop.ai
still up
2024-01-01
AI operating system for veterinary care · scritchai.com
still up

How this compares

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.