GreenClassLog

Gamified carbon logging with class challenges and uni meal/dorm leaderboards.

Score: 7.7/10UKEasy BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Climatetech students cannot accurately log their carbon footprints because most trackers lack integration with university meal plans and dorm energy data.

Solution

GreenClassLog turns footprint tracking into class competitions by integrating shared uni meal and dorm data for group accuracy. Students join course cohorts for leaderboards, badges, and collective goals. It auto-generates team reports to boost participation in climatetech programs.

Target Audience

Students enrolled in climatetech courses at universities

Differentiator

Cohort-based gamification tied to real uni data for viral class adoption.

Brand Voice

edgy

Features

Cohort Join

must-have12h

Enter class code to join group

Leaderboard

must-have18h

Real-time class and dorm rankings

Uni Data Feed

must-have15h

Shared meal/dorm aggregates per building

Badge System

must-have10h

Earn rewards for milestones

Team Challenges

must-have12h

Group goals with progress bars

Auto-Reports

must-have8h

Class summary exports

Invite Friends

nice-to-have5h

Viral classmate invites

Streak Tracker

nice-to-have4h

Daily login streaks

Custom Challenges

nice-to-have6h

Prof-created quests

VR Visuals

future20h

Immersive footprint viz

Total Build Time: 110 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo
cohort_iduuidYes

Relationships:

  • foreign key to cohorts.id

cohorts

ColumnTypeNullable
iduuidNo
codetextNo
uni_iduuidYes
nametextNo

Relationships:

  • foreign key to universities.id

logs

ColumnTypeNullable
iduuidNo
user_iduuidNo
datedateNo
co2floatNo

Relationships:

  • foreign key to users.id

badges

ColumnTypeNullable
iduuidNo
user_iduuidNo
nametextNo
earned_attimestampNo

Relationships:

  • foreign key to users.id

universities

ColumnTypeNullable
iduuidNo
nametextNo

API Endpoints

GET
/api/cohorts/:code

Join or view cohort

🔒 Auth Required
GET
/api/leaderboards

Fetch rankings

🔒 Auth Required
POST
/api/logs

Submit daily log

🔒 Auth Required
GET
/api/badges

User badges

🔒 Auth Required
POST
/api/reports

Generate cohort report

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + shadcn/ui
Backend
Next.js API routes
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Pusher for real-time

Build Timeline

Week 1: Auth and cohorts

18h
  • Signup
  • Cohort system
  • DB

Week 2: Logging and data

22h
  • Logs
  • Uni feeds

Week 3: Gamification

28h
  • Leaderboards
  • Badges

Week 4: Challenges and UI

20h
  • Challenges
  • Payments

Week 5: Deploy

12h
  • Real-time
  • Tests
Total Timeline: 5 weeks • 110 hours

Pricing Tiers

Free

$0/mo

1 cohort

  • Personal logs
  • Public leaderboards

Pro

$27/mo

None

  • Unlimited cohorts
  • Private challenges
  • Badges

Enterprise

$97/mo

None

  • Prof dashboard
  • Unlimited teams

Revenue Projections

MonthUsersConversionMRRARR
Month 12001%$54$648
Month 69003%$729$8,748

Unit Economics

$7
CAC
$240
LTV
4%
Churn
94%
Margin
LTV:CAC Ratio: 34.3xExcellent!

Landing Page Copy

Crush Carbon Challenges with Your Class

Gamified tracking with uni data – lead the leaderboard!

Feature Highlights

Class leaderboards
Uni data accuracy
Badges & challenges
Team reports

Social Proof (Placeholders)

"'Our class hit zero-waste goals!' - Riley, UCLA"
"'Leaderboards motivate everyone.' - Casey, Cornell"

First Three Customers

Partner with 3 climatetech profs via email/LinkedIn for class codes; seed first cohorts; leverage student ambassadors for invites.

Launch Channels

Product Huntr/gamificationr/SideProjectTwitter #SustainabilityUniversity forums

SEO Keywords

climatetech class carbon challengestudent cohort footprint leaderboarduniversity dorm carbon gamegreen campus competition

Competitive Analysis

EarthHero

earthhero.com
$5/mo
Strength

Challenges

Weakness

No uni data

Our Advantage

Class-specific gamification

Carbonalyst

carbonalyst.com
Freemium
Strength

B2B

Weakness

Not student-focused

Our Advantage

Viral cohort mechanics

🏰 Moat Strategy

Network effects from class cohorts – once one joins, whole class follows.

⏰ Why Now?

Gen Z gamification trend + uni net-zero pledges drive demand for engaging tools.

Risks & Mitigation

marketmedium severity

Prof buy-in slow

Mitigation

Free prof tiers

technicallow severity

Real-time scaling

Mitigation

Supabase realtime

Validation Roadmap

pre-build10 days

Pitch to 5 profs

Success: 2 class pilots

mvp14 days

1 cohort active

Success: 80% retention

launch5 days

10 cohorts

Success: 500 users

Pivot Options

  • General habit gamifier
  • Corporate team challenges
  • Solo student only

Quick Stats

Build Time
110h
Target MRR (6 mo)
$900
Market Size
$6.0M
Features
10
Database Tables
5
API Endpoints
5