AI predicts & splits dorm energy bills—no meters needed, just $30/mo fair shares.
College students in shared housing are frustrated by GreenGrid's high subscription costs for basic energy monitoring features they need to split bills fairly.
BillZap uses quick habit surveys and past bills to AI-predict usage per roommate, generating proactive splits before the bill arrives. It handles adjustments for showers, gaming, etc., with chat-like dispute resolution. Ideal for no-meter-access dorms tired of GreenGrid costs.
College students living in shared housing or dorms
Zero-input AI predictions from student habits + predictive alerts, dorm-only algorithms.
supportive
Quick quiz for usage profiles.
Forecast monthly usage/splits.
Add roommates & appliances.
Enter actual bill, auto-adjust.
Warn before overages.
In-app resolve disagreements.
Monthly insights.
Utility integrations.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| name | text | Yes |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| name | text | No |
| owner_id | uuid | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| household_id | uuid | No |
| user_id | uuid | No |
| habits_json | text | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| household_id | uuid | No |
| predicted_total | text | No |
| timestamp | timestamp | No |
Relationships:
/api/profilesSave habit profile
/api/predictions/:householdIdGet latest prediction
/api/billsInput bill & adjust
/api/disputesLog dispute
1 household
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 250 | 2.5% | $188 | $2,256 |
| Month 6 | 1,800 | 4.5% | $2,431 | $29,172 |
AI does the math for fair dorm shares. Skip GreenGrid.
Run Typeform survey in college Facebook groups, offer free year for feedback, target international dorms with high bills.
Hardware accuracy
Requires setup
Zero setup AI
Ease
Manual only
Predictive smarts
AI improves with anonymized dorm data.
AI accessibility + inflation drives bill fights.
Prediction accuracy
Hybrid manual
Trust in AI
Transparency
AI costs
Edge functions
Success: 70% accuracy match
Success: 75% satisfaction
Success: 1k visits
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