Products

CastorPrep

AI-native

Earn your stamp.

castorprep.com Education / Test Preparation

AI Benchmark
Desktop
Mobile
Monthly visits
11.6K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$29/mo
Higher than 74% of peersNiche median $11.99/mo
Creators
Terry Song
No social account linked
Launched
4mo ago
2026-07-28 · Est.

Traffic

Last 12 months
Monthly visitsData through Oct 2026
Events1 marketing move

Marketing moves

Launches, search & content, referrals, promotions
  • Launched on Product HuntLaunch

    Exam-real practice and a AI tutor for NCEES PE exams.

    Jul 28 · 4mo agoLaunch page

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Direct33%
  • Organic Search27%
  • Referrals14%
  • Social7%
  • Other19%

Countries

  • United States100%

Search

Domain authority —Domain registered 2026-06-13

KeywordMonthly volume
dew point calculator2,360
pe civil exam880
pe hvac and refrigeration760
which pe exam should i take if i am interested in manufacturing?620
pe practice question wre300

Traffic data: Vaneform

Pricing

Free
Free
Pro
$29/mo

Trial: None · Free tier included · 1 paid tier ($29) · Observed 2026-10-31 · Pricing page

Entry price $29/mo, Higher than 74% of peers; “Test Preparation” median is $11.99/mo.View pricing benchmark

Pages & changes

Tracked since 2026-07-28

Key pages

Weekly snapshots

Changes

No pricing, plan, or positioning changes detected since tracking started.

Design

First-screen visual analysis & :root CSS

Editorial (Light canvas, airy density) featuring centered headline + cta layout and illustration / character art visuals.

First-screen preview · click to zoom

First-screen pitch & conversion flow

“Earn your stamp.”

Centered Headline + CTA hero structure paired with start free / sign up CTA and no explicit trust bar.

Conversion path: Centered Headline + CTA + Illustration / Character Art → Start Free / Sign Up

Palette · click to copy

5-D design score8.1 / 10
Typography
8.0
Color & Contrast
8.0
Layout & Spacing
9.0
Craft & Polish
8.0
Distinctiveness
7.0

Structure

Fonts
Inter
Primary visual
Illustration / Character Art
Conversion CTA
Start Free / Sign Up
Social proof
No Explicit Trust Bar
Navigation
Full-Width Top Bar
Theme & density
Light · Airy
Corners & depth
Small Radius · Hairline borders
Preview full AI design brief (includes :root CSS variables & layout rules)Style tokens only; never copy brand names, logos, copy, or images
# Design Brief: Editorial (with Soft & Friendly)

Oversized serif headlines, narrow reading columns, and magazine-inspired grid layouts.

## Design Tokens

```css
:root {
  --background: #f7f6f2;
  --surface: #ffffff;
  --foreground: #1c2431;
  --muted-foreground: #66707a;
  --accent: #815019;
  --radius: 4px;
  --font-heading: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
}
```

Color area ratio: Background #F7F6F2 (~82%) · Surface #FFFFFF (~8%) · Text #1C2431 (~4%) · Muted Text #66707A (~4%) · Accent #815019 (~2%). Background and surface dominate the canvas; reserve the accent color for primary buttons and active states.

## Layout & Conversion Structure

- Hero layout: Centered Headline + CTA
- Navigation: Full-Width Top Bar
- Theme & density: Light · Airy
- Border radius & elevation: Small Radius; no drop shadows—separate layers with hairline borders and whitespace
- Primary visual medium: Illustration / Character Art
- Conversion CTA: Start Free / Sign Up
- Headline hook: Brand Manifesto & Curiosity
- Hero components: Custom Illustration, Metrics Strip
- Spatial layout notes: Centered Headline + CTA hero structure paired with start free / sign up CTA and no explicit trust bar.
- Visual summary: Editorial (Light canvas, airy density) featuring centered headline + cta layout and illustration / character art visuals.

## Avoid

- Generic SaaS hero templates
- Cramped multi-column feature grids
- Neon cyber accents

Implement the UI following the design tokens and layout specifications above: use only these color variables, and reserve the accent color strictly for primary actions and active states. Adopt only this visual style—never copy any reference product’s brand name, logo, copy, or imagery.

Questions & evidence

How much does CastorPrep cost?
Free: Free; Pro: $29/mo. Observed 2026-10-31. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does CastorPrep get?
Vaneform estimates 11.6K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is CastorPrep and what platforms does it support?
CastorPrep is catalogued under Test Preparation: Earn your stamp.. Supported platforms: Web.

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