Offline-first AI homework app—runs 100% in your browser, no internet or accounts needed
Students risk their personal homework data being exposed through cloud storage in popular AI learning apps lacking privacy protections.
GhostStudy uses lightweight client-side ML models (via Transformers.js) for instant homework help on math, writing, and more, storing everything locally in IndexedDB. Export sessions anytime, with PWA install for desktop/mobile offline use. Privacy is absolute: no servers, no tracking, no data exposure ever.
K-12 and college students using AI apps for homework assistance, along with privacy-conscious parents
Fully offline with embedded open-source models—no API keys, no connectivity required for core use
friendly
Embedded ML models for basic homework queries (math solver, grammar check)
App-like experience installable on phone/desktop
Unlimited session history in browser storage
Pre-trained models for K-12 math, English, science
PDF/JSON exports + ephemeral share links (client-side generated)
Pro: Download new models securely
Tailored difficulty by K-12/college
Scan homework photos locally
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| device_fingerprint | text | Yes |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| stripe_id | text | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| model_version | text | No |
| downloaded_at | timestamp | No |
Relationships:
/api/auth/signupPro user registration
/api/models/listList available model downloads
/api/download/tokenGenerate temp download URL
/api/stripe/webhookSubscription sync
Core subjects only
None
One-time
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 150 | 1.5% | $83 | $1,000 |
| Month 6 | 1,200 | 3.5% | $1,554 | $18,648 |
Offline, private, no accounts—install and study anywhere securely.
Share PWA demo on r/nosurf, r/privacytoolsIO, homeschool Facebook groups; cold DM indie edtech YouTubers for reviews; run $50 Twitter ad targeting 'offline ai'.
Math scanning
Cloud processing
Fully local/offline
Broad coverage
Google data tracking
Zero telemetry
Embedded models tuned for homework create high switching cost; PWA virality via easy sharing
Web ML maturity (Transformers.js stable) + demand for offline tools amid spotty school WiFi
Model inference speed on low-end devices
Start with tiny models, progressive loading
Accuracy vs cloud AI
Clear disclaimers + hybrid future
Success: 70% prefer over ChatGPT for privacy
Success: 20 Pro upgrades
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