You asked about Alternative Battery Tech
180 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2023-02-01 | trigger.dev | still up |
| 2023-09-14 | nuejs.org | still up |
| 2023-01-25 | automatisch.io | still up |
| 2023-07-23 | cc.dev | still up |
| 2023-12-09 | osssoftware.org | still up |
| 2023-03-06 | totaljs.com | still up |
| 2023-06-12 | zsync.xyz | still up |
| 2023-12-03 | onsites.fyi | still up |
| 2023-01-01 | YCAlaan Modern finance platform for the Middle East · alaan.com | still up |
| 2023-08-15 | servicer.dev | still up |
| 2023-10-19 | learnhouse.app | still up |
| 2023-01-01 | YCNumeral The AI-native sales tax solution. · numeral.com | still up |
| 2023-06-01 | YCCampfire The AI Native ERP for the fastest growing companies. · campfire.ai | still up |
| 2023-01-01 | YCHadrius Automating Securities Compliance · hadrius.com | still up |
| 2023-01-01 | YCWarp AI-native Employee Management Platform for High-Growth Companies · warp.co | still up |
| 2023-03-06 | stavros.io | still up |
| 2023-01-01 | YCRUUF Managed marketplace for solar in Latam · ruuf.cl | still up |
| 2023-11-06 | jeeves.sh | still up |
| 2023-04-16 | typeapi.org | still up |
| 2023-06-01 | Digital-native home painting franchise · craftwork.com | still up |
| 2023-01-30 | get-merit.com | still up |
| 2023-06-28 | gitopia.com | still up |
| 2023-06-01 | YCVetRec AI Scribe for veterinarians. Saving time and improving patient care. · vetrec.io | still up |
| 2023-06-01 | B2B debt collection powered by AI agents · agentcollect.com | still up |
| 2023-01-01 | YCSalient AI Servicing for Auto Lenders · trysalient.com | still up |
| 2023-06-01 | YCCasca Make Banking Magical · cascading.ai | still up |
| 2023-06-01 | Navigating patients to the right place, first time. · healthtech1.uk | still up |
| 2023-06-01 | Helping businesses in emerging markets make pay their international… · capimoney.com | still up |
| 2023-01-01 | YCLittio Dollar banking for people in Latin America · littio.co | still up |
| 2023-01-01 | YCBujeti The Finance Control Centre for African Businesses · bujeti.com | still up |
| 2023-02-23 | bunch.ai | still up |
| 2023-06-01 | AI-native operations for the banks · bretton.com | still up |
| 2023-06-01 | YCTrayd A construction payroll and compliance platform built for specialty… · buildtrayd.com | still up |
| 2023-12-07 | cujobay.com | still up |
| 2023-01-01 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-01-01 | YCWaza B2B payments platform for emerging markets. · waza.co | still up |
| 2023-06-01 | Claims infrastructure for African health insurance · edencaremedical.com | still up |
| 2023-06-01 | YCCercli AI powered HR and Recruitment for people teams · cercli.com | still up |
| 2023-06-01 | The cheapest way to borrow money · syntheticfi.com | still up |
| 2023-12-14 | klunok.org | still up |
| 2023-06-01 | YCkapa.ai The fastest way to build AI assistants on technical content · kapa.ai | still up |
| 2023-06-01 | TurboTax for Medicaid · fortunahealth.com | still up |
| 2023-01-01 | YCloopfour Workflow automation, without AI hallucinations. · loopfour.com | still up |
| 2023-01-01 | AI-Powered Super Mentor for Test Prep · superkalam.com | still up |
| 2023-06-01 | YCReadily AI Compliance Platform for Healthcare Organizations · readily.co | still up |
| 2023-06-01 | YCBolto AI Powered All-In-One Payroll, HR + Recruiting · bolto.com | still up |
| 2023-06-01 | YCAccend AI agents for commercial underwriting at banks and fintechs · withaccend.com | still up |
| 2023-06-01 | Tech-enabled heat pump contractor that cuts costs by 60% · electricair.io | still up |
| 2023-07-30 | esyblog.com | still up |
| 2023-01-01 | B2B marketplace for Auto Dealers in Africa · shekelmobility.com | still up |
| 2023-01-01 | YCPoloTab Restaurant software that actually works · polotab.com | still up |
| 2023-06-01 | YCFlint Personalized learning built for schools · flintk12.com | still up |
| 2023-06-01 | YCNumen Engineering a future without cancer deaths. · numen.com | still up |
| 2023-06-09 | servicestack.net | still up |
| 2023-10-20 | exploit.observer | still up |
| 2023-01-01 | YCWallbit Neobank for global remote workers · wallbit.io | still up |
| 2023-01-01 | YCMetal The AI context platform for private capital. Everything your firm… · metal.ai | still up |
| 2023-12-13 | opensignlabs.com | still up |
| 2023-01-01 | YCMilio B2B-2C real-time account to account payments · miliopay.com | still up |
| 2023-01-01 | Enterprise-Grade OpenTelemetry · odigos.io | 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.