Daily carbon tracker for sustainability students – log habits, share club insights
University students in sustainability clubs can't afford expensive subscription-based carbon footprint calculators required for their projects.
GreenCampusDiary lets students track personal and group daily carbon footprints via quick habit logs tailored to uni life like commuting or cafeteria meals. Aggregate data for club reports to demonstrate collective impact. Affordable access unlocks trends and gamified challenges.
University students participating in sustainability clubs
Habit-based daily logging with club aggregation, not just one-off projects
supportive
Quick buttons for common student activities
Weekly/monthly footprint trends
Invite members, aggregate data
Visualize reductions over time
Club-level reports for projects
Group challenges with badges
Personalized reduction advice
CSV for analysis
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| club_id | uuid | Yes |
| created_at | timestamp | No |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| name | text | No |
| invite_code | text | No |
| total_footprint | int | Yes |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| date | timestamp | No |
| habit | text | No |
| carbon_value | int | No |
Relationships:
/api/logsLog daily habit
/api/dashboardPersonal trends
/api/clubs/:id/joinJoin club
/api/clubs/:id/summaryClub aggregate
/api/clubsCreate club
No clubs
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 150 | 3% | $90 | $1,080 |
| Month 6 | 1,200 | 5% | $1,740 | $20,880 |
Log habits easily, aggregate for club wins. Student-priced from $10/mo.
Share diary prototype in sustainability club subreddits and Instagram stories from uni accounts. Offer lifetime Pro to first 3 clubs who share logs publicly. Partner with one club leader for co-marketing.
Gamification
No club aggregation
Club-focused sharing
Personal tracking
Limited uni integration
Habit templates for campus life
Network effects from club data sharing improving group benchmarks
Post-pandemic hybrid campus life increases personal tracking demand, with clubs needing proof for funding
Users forget to log daily
Push notifications + streaks
Data privacy concerns
GDPR compliant, anonymized aggregates
Success: Daily use intent >60%
Success: Avg 4 logs/week
Success: 50 users day1
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