PurePen.com

Generate original essays from prompts that fool every AI detector by design.

Score: 7.5/10UKHard BuildReady to Spawn
Brand Colors

The Opportunity

Problem

University students using AI essay generators like Jasper have their work flagged for plagiarism by detectors, forcing hours of rewrites.

Solution

Input essay prompt, outline, and key points; tool crafts fully original content using hybrid human-AI templates with random student quirks, citations, and non-AI phrasing. Built-in originality verifier ensures <1% detection risk without post-edits.

Target Audience

University students using AI tools like Jasper for essay writing assignments

Differentiator

Template library from 10k+ real essays ensures inherent undetectability, not just rewriting.

Brand Voice

professional

Features

Prompt-to-Essay Generator

must-have25h

Turn prompt into full essay with citations.

Built-in Verifier

must-have15h

Auto-check generated essay for AI flags.

Template Library

must-have18h

Browse/save custom writing templates.

Outline Builder

must-have12h

Interactive outline before full gen.

Citation Integrator

must-have15h

Auto-add real sources matching topic.

Style Mimic

nice-to-have12h

Match past user style from uploads.

Collaborative Edit

nice-to-have15h

Real-time co-editing with peers.

Plagiarism Report

nice-to-have10h

External plag check integration.

Total Build Time: 122 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
essays_generatedintNo

Relationships:

  • one-to-many essays, templates

essays

ColumnTypeNullable
iduuidNo
user_iduuidNo
prompttextNo
contenttextNo
citationsjsonbYes
verification_scoreintYes

Relationships:

  • foreign key users.id

templates

ColumnTypeNullable
iduuidNo
user_iduuidYes
nametextNo
structurejsonbNo

Relationships:

  • foreign key users.id (nullable for public)

API Endpoints

POST
/api/generate

Create essay from prompt

🔒 Auth Required
GET
/api/essays

User essays list

🔒 Auth Required
GET
/api/templates

Fetch templates

🔒 Auth Required
POST
/api/verify

Verify essay originality

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui + Monaco Editor
Backend
Next.js + Supabase Edge Functions
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Google Scholar API for citations

Build Timeline

Week 1: Core gen MVP

28h
  • Auth
  • Prompt gen basic

Week 2: Verifier & templates

35h
  • Verify
  • Template sys

Week 3: Outline/UI

32h
  • Outline builder
  • Dashboard

Week 4: Citations/payments

28h
  • Cites
  • Stripe

Week 5: Polish/nice

22h
  • Style mimic

Week 6: Test/deploy

18h
  • Full QA

Week 7: Launch extras

12h
  • SEO opt
Total Timeline: 7 weeks • 225 hours

Pricing Tiers

Free

$0/mo

2000 words/essay

  • 3 essays/mo
  • Basic templates

Pro

$10/mo

Unlimited length

  • 30 essays/mo
  • Full templates
  • Citations

Enterprise

$29/mo

API/team

  • Unlimited
  • Style mimic
  • Priority gen

Revenue Projections

MonthUsersConversionMRRARR
Month 11805%$90$1,080
Month 62,00010%$2,000$24,000

Unit Economics

$6
CAC
$180
LTV
4%
Churn
90%
Margin
LTV:CAC Ratio: 30.0xExcellent!

Landing Page Copy

Original Essays That Detectors Can't Touch

Prompt-based generation built undetectable from the start.

Feature Highlights

Prompt to full essay
Auto-citations
Template variety
Verifier guarantee

Social Proof (Placeholders)

"'Perfect scores every time.' - Jordan, Junior"

First Three Customers

Share prompt-gen demo video on TikTok/YouTube student channels; cold email uni writing center tutors for trials; $50 FB ads to 'essay help' groups.

Launch Channels

Product Huntr/collegeBetaListTwitter #AIwriting

SEO Keywords

ai essay generator undetectableoriginal ai essaysstealth essay writerprompt to undetectable essay

Competitive Analysis

Jasper.ai

jasper.ai
$39+/mo
Strength

Powerful gen

Weakness

High detection rates

Our Advantage

Design-for-undetectability + cheaper

🏰 Moat Strategy

Growing template library from user generations creates data moat.

⏰ Why Now?

Students use AI for 50%+ assignments but detectors evolved; need native low-detection gens.

Risks & Mitigation

financialmedium severity

High OpenAI costs

Mitigation

Tiered limits + cheaper models

marketlow severity

Saturation of generators

Mitigation

Niche student focus

Validation Roadmap

pre-build7 days

Landing page + waitlist

Success: 100 signups

growth30 days

Affiliate student testers

Success: 20% retention

Pivot Options

  • Blog post generator
  • Resume builder
  • Email drafter

Quick Stats

Build Time
225h
Target MRR (6 mo)
$2,000
Market Size
$400.0M
Features
8
Database Tables
3
API Endpoints
4