Gamified, offline-first learning platform for ZIMSEC O-Level & A-Level students.
Nhaka (Shona: "heritage/inheritance") is a mobile-first Progressive Web App designed for the Zimbabwean education market, aligned to the Heritage-Based Education 2024–2030 Curriculum. It transforms ZIMSEC past papers into interactive micro-lessons, timed mock exams, and AI-graded essays — optimized for low-end Android devices, intermittent connectivity, and battery constraints.
- 11 ZIMSEC subjects — all 5 compulsory + 6 popular electives
- Spaced Repetition — SM-2 algorithm tracks wrong answers and resurfaces them at expanding intervals
- Onboarding Flow — subject selection, daily goal, exam countdown, notification setup
- Leaderboards — 4-tier league system (Bronze → Diamond) with school-based rankings
- Push Notifications — daily reminders, streak-at-risk alerts
- KaTeX LaTeX Rendering — crisp mathematical typography
- Timed Mock Exams — full ZIMSEC Paper 1 simulation
- AI Essay Grader — structural feedback for Humanities essays
- SBP Portfolio Tracker — Kanban board for School-Based Projects
- Offline Data Manager — module downloads with CRDT event sync
- Payment Integration — EcoCash, InnBucks, WhatsApp-to-Parent via Paynow
| Subject | Code | Topics |
|---|---|---|
| Mathematics | 4004 | 12 nodes: Arithmetic → Vectors |
| English Language | 1122 | 5 nodes: Comprehension → Report Writing |
| Shona | 3159 | 4 nodes: Grammar → Comprehension |
| Combined Science | 5006 | 4 nodes: Living Things → Environment |
| Heritage Studies | 6081 | 5 nodes: Socialisation → Constitution |
| Subject | Code | Topics |
|---|---|---|
| Physics | 5055 | 6 nodes: Measurement → Nuclear |
| Chemistry | 5071 | 6 nodes: Atomic Structure → Organic |
| Biology | 5007 | 5 nodes: Cell Biology → Ecology |
| History | 2167 | 4 nodes: Pre-Colonial → Regional |
| Geography | 2248 | 4 nodes: Map Work → Population |
| Accounting | 7112 | 3 nodes: Double Entry → Cash Book |
Payments via Paynow Zimbabwe (EcoCash, InnBucks, OneMoney, Visa/MC):
- Monthly: $2.99
- Per Term: $6.99
- Full Year: $14.99
Merchant EcoCash: 0785378845
npm install
npm run devOpen http://localhost:3000 in a mobile viewport.
- Next.js 16 (App Router) + TypeScript
- Tailwind CSS v4 (AMOLED dark theme)
- KaTeX for LaTeX rendering
- Paynow Node.js SDK for payments
- PWA with service worker
Nhaka — Shona for "heritage" or "inheritance." Connects directly to Zimbabwe's Heritage-Based Education Curriculum and represents the knowledge students inherit and build upon.