Chalk Calculator
Calculators that show their work. No signup, no tracking.
Votes
2
Comments
1
What this means
+100%Launching in a 100% WoW growing category.
Web App had 11 launches this week vs 0 last.
14Founder Conviction Index: 14 — low signal.
Few of the conviction sub-signals (reputation, velocity, buyer-intent, tagline clarity) are firing yet.
Prediction
Top-5 finish probability
6%
today
Projected end-of-day votes
2range 2–3
Trajectory
stable
Vote pace holding steady.
Speed vs peers
1×
35 Productivity launches
About
Free, fast and accurate calculators for pay, mortgages, loans, home projects, cars and everyday math. No signup, no clutter — your numbers never leave your device.
AI Summary
Chalk Calculator is a web app that provides free and accurate calculations for various financial and everyday math scenarios without requiring signup or tracking. User data remains private, as calculations are performed locally on the device.
Vote & comment velocity
Performance
Velocity0
Vote pace vs average
Momentum0
Sustained over 6h
Virality0
Spread × engagement
Engagement—
not measured
Signal sources
2 of 6 active- Product Hunt2 votes · 3 snapshots
- AI analysisProductivity
- Comment intelligence1 comments, not yet analysed
- Hacker Newschecked, no discussion found
- Revenue (TrustMRR)no match on this domain
- Editorial scoringbelow the signal threshold for this pass
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.