Custom PWA fortress for Coursera quizzes—crash-proof, distraction-free mobile study.
Coursera's mobile app crashes during quizzes, preventing students from studying effectively on the go.
QuizFortress creates a personalized PWA where users recreate quizzes manually or via simple copy-paste, running in a locked, full-screen mode optimized for mobile stability. It includes anti-distraction features and auto-progress save, replacing the unreliable Coursera app for on-the-go sessions. Perfect for short breaks with no data dependency.
Busy students enrolled in online courses on platforms like Coursera who depend on mobile apps for studying during commutes or short breaks.
Distraction-locking kiosk mode + mobile-first UI that outperforms native apps.
professional
Quick copy-paste quiz creation from Coursera.
Full-screen lock to prevent distractions/crashes.
Responsive PWA with gesture controls.
Infinite local saves, optional cloud.
Timed quizzes with instant feedback.
Personal library with search.
Customizable UI themes.
PDF score reports.
Push notifications for quiz time.
Private score boards.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| created_at | timestamp | No |
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| title | text | No |
| content | jsonb | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| quiz_id | uuid | No |
| score | int | Yes |
| duration | int | No |
| completed_at | timestamp | Yes |
Relationships:
/api/quizzesCreate quiz
/api/quizzesList quizzes
/api/quizzes/:idGet quiz
/api/attemptsSave attempt
/api/attempts/:quizIdList attempts
No cloud save
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 120 | 2.5% | $75 | $900 |
| Month 6 | 900 | 4.5% | $1,012 | $12,144 |
Kiosk-mode PWA: stable, locked, crash-free mobile studying.
Create free quiz templates for popular Coursera courses and share in course Discords; offer lifetime Pro to first 3 Reddit posters complaining about crashes; track via waitlist form.
Gamified quizzes
Group focus, no personal import
Solo crash-proof Coursera clone
Easy forms
No kiosk or offline
Study-optimized PWA
Personal quiz library data moat + kiosk UX stickiness.
PWA adoption rising, students demand reliable mobile tools amid app flaws.
Users prefer manual recreation effort
Templates for top courses
Kiosk escape on mobile
Service worker locks
Success: 50 signups
Success: 20% usage
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