VendorCalcs
Quiet signalPayment fee & invoice gross-up calculator for sellers
Launched 24d ago
Signal
17
Velocity
0
What this means
30%Vote pace is below typical for this category.
Running at 30% of comparable launches.
-25%Category cooling: Fintech.
Launches down 25% week-over-week.
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
2%
today
Projected end-of-day votes
2range 2–3
Trajectory
stable
Vote pace holding steady.
Speed vs peers
0.3×
278 comparable launches
About
Most payment fee calculators are clunky, loaded with ads, and run outdated rates. VendorCalcs is an ad-free, zero-latency payment fee auditor for founders, sellers & freelancers. What makes it stand out: • Reverse Invoice Gross-Up: Calculate the exact amount to bill to hit your net target • Refund Loss Audit: See how much unrefunded fees bleed your margins on returns • 19 platforms (Stripe, PayPal, Shopify, LemonSqueezy, Etsy) across 5 countries • Zero ads, no sign-ups, 100% free
Attention & discussion velocity
Performance
Velocity0
Vote pace vs average
Momentum0
Sustained over 6h
Virality0
Spread × engagement
Engagement—
not measured
Signal sources
1 of 6 active- Launch tracking3 readings since we picked it up
- AI analysisnot yet enriched
- Comment intelligencethread not yet analysed
- Outside discussionnot checked — domain is a storefront or shared
- Revenue signalsno 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.