BlackCross
Crowd-sourced investigation for unsolved crimes
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BlackCross is a True crime and cold case research is massive right now, yet citizen detectives are forced to use tools that weren't built for investigation. Clues get lost in endless Reddit threads, timeline updates get buried in Facebook groups, and public records sit in scattered Google Drives. The Solution: I built BlackCross to be the social network specifically designed for solving mysteries. Instead of chaotic comment sections, every case gets a living, structured hub.
PH · launched Nov 13, 2026 · 1 upvote (top 65%) · 0 views
Niche: digital investigation and diagnostic software · 69 launches, 10 in the last 7 days ▲ +43% · Explore this niche →
Category and tags
- Security
- B2C
- Not AI
- Hobby / open-source project
- Social Media
- Artificial Intelligence
- Tech
Visit website ↗ Source listing ↗
More like this: all 69 launches in digital investigation and diagnostic software →
Could you build this?
Partial The collaboration and timeline UI is vibe-codeable, but the value depends on aggregating and verifying public records and running moderation for a crowd of investigators.
What it would actually take: The core stack is a web app with threaded discussion, case timelines, and document storage. The hard parts are building and maintaining records-ingestion pipelines across many jurisdictions, and running moderation and evidence-verification workflows to prevent doxxing and misinformation. That requires investigators or legal/ethics review and ongoing data-operations staff.
Competitors
Other products that read as similar to this one : 17 launches clear the similarity bar, closest 8 shown.
Attention rank: #11 of 18 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 329 days after the earliest competitor.
- Somatry: Cold Case Mystery · ph · 2026-10-22 · 2 upvotes · similarity 0.40
- GUILTY or NOT? · ph · 2026-11-10 · 1 upvotes · similarity 0.39
- Truth Trace · ph · 2026-10-22 · 2 upvotes · similarity 0.38
- Somatry: Cold Case Mystery · ph · 2026-11-07 · 1 upvotes · similarity 0.37
- Anomaly Graph · ph · 2026-10-19 · 3 upvotes · similarity 0.35
- Ubonile · ph · 2026-11-13 · 1 upvotes · similarity 0.34
- Witness · ph · 2026-10-12 · 1 upvotes · similarity 0.34
- Clue Mates · ph · 2026-10-10 · 2 upvotes · similarity 0.32
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.