Nicheloom visits: 58,094 all-time · 7,637 in the last 7 days

The opportunity tracker for new startups.

Today: 1,953 launches · Niche of the day: specialized calculation tools · See what launched today →

Are You a Good Estimator?

Get picks like this daily. Today's launch numbers, the top launches, AI and tech news, and a daily opportunity pick, straight to your inbox.

Want to reach these readers? Sponsor an issue.

HN · launched Oct 29, 2025 · 15 upvotes (top 31%) · 0 views

Niche: online trivia quiz games · 163 launches, 18 in the last 7 days ▼ -25% · Explore this niche →

Category and tags

  • Education
  • Vertical SaaS
  • B2C
  • Not AI
  • Hobby / open-source project

Visit website ↗ Source listing ↗

Could you build this?

Yes It is a simple interactive web quiz evaluating numerical confidence intervals based on a classic Jeff Atwood blog post.

Discussion

9 comments analyzed.

Concerns raised: Scoring system marks close estimates wrong, treats as trivia rather than estimation skill, Allows gaming the system with extreme ranges (0 to 10^18) to get credit, Unit confusion between raw numbers and billions, Mobile UX: units not visible without scrolling

Feature requests: Show how far off estimates were (order of magnitude), Measure accuracy as mean percent difference instead of right/wrong binary, Add decimal separators to number input boxes, Display units at top of questions or in input boxes, Use slider interface instead of text input for range selection

Competitors

Other products that read as similar to this one : 59 launches clear the similarity bar, closest 8 shown.

Attention rank: #19 of 60 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Looks like the first mover among its competitors.

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.