Construction Site App - Cost Breakdown (Taotech Solutions)

🌐 Infrastructure Cost (Monthly Recurring)

Cloud Services & Hosting

Service	Provider	Monthly Cost (₦)	Description
App Hosting	Google Cloud Platform	80,000	Server hosting, auto-scaling, load balancing
Database Hosting	Google Cloud SQL	45,000	PostgreSQL managed database
File Storage	Google Cloud Storage	25,000	Photos, videos, documents storage
CDN Service	Google Cloud CDN	15,000	Fast content delivery worldwide
Real-time Services	Firebase	20,000	Push notifications, real-time database
Domain & SSL	Various	3,000	Domain registration, SSL certificates
Monitoring & Analytics	Google Analytics, Sentry	12,000	App monitoring, error tracking, analytics
TOTAL CLOUD INFRASTRUCTURE	Monthly recurring	₦200,000	All cloud services

Third-party API Costs

API Service	Provider	Monthly Cost (₦)	Usage
Payment Processing	Paystack	0	1.5% per transaction (revenue share)
SMS Notifications	Termii/Bulk SMS	15,000	10,000 SMS per month
Email Service	SendGrid	8,000	50,000 emails per month
Maps & Location	Google Maps API	20,000	Location services, mapping
Video Processing	Cloudinary	25,000	Image/video optimization
TOTAL API COSTS	Monthly recurring	₦68,000	Third-party services

⚡ Operational Cost (Monthly)

Operational Item	Monthly Cost (₦)	Description
Internet (Fiber + Backup)	30,000	High-speed internet + backup connection
Electricity + Generator	50,000	Power supply + backup generator
Equipment Maintenance	20,000	Laptop maintenance, peripherals
TOTAL OPERATIONAL	₦100,000	Monthly operational expenses

📅 Month-by-Month Development Plan & Costs

MONTH 1: Foundation & Core APIs

Development Tasks

✅ Project setup & repository structure
✅ Database design & schema creation
✅ Authentication API (JWT, OAuth)
✅ User management APIs
✅ Project creation & management APIs
✅ File upload APIs (photos/videos)
✅ Basic Flutter app structure
✅ Real-time messaging setup (WebSocket)

Month 1 Costs

Development Cost	₦600,000
Infrastructure	₦200,000
Operational	₦100,000
MONTH 1 TOTAL	₦900,000

📋 Developer Responsibilities - Month 1

Lead Developer:

API architecture design
Database schema design
Authentication system setup
Team coordination & code reviews
Client communication

Co Developer:

Flutter UI implementation
API integration on frontend
Basic CRUD operations
UI component development
Testing & bug fixes

MONTH 2: Advanced Features & Integrations

Development Tasks

✅ Financial tracking APIs
✅ Payment gateway integration (Paystack)
✅ Document management system
✅ Contractor portal development
✅ Push notification system
✅ Real-time progress tracking
✅ Advanced Flutter features
✅ Third-party API integrations

Month 2 Costs

Development Cost	₦600,000
Infrastructure	₦250,000
Operational	₦100,000
MONTH 2 TOTAL	₦950,000

📋 Developer Responsibilities - Month 2

Lead Developer:

Complex API development
Payment system integration
Security implementation
Performance optimization
Integration testing

Co Developer:

Advanced UI components
Form validation & handling
Image/video processing
Offline functionality
User acceptance testing

MONTH 3: Polish, Testing & Launch

Development Tasks

✅ Performance optimization
✅ Security hardening & penetration testing
✅ API rate limiting & monitoring
✅ Complete testing suite
✅ API documentation (Swagger)
✅ App store preparation & submission
✅ Admin dashboard completion
✅ Launch preparation & deployment

Month 3 Costs

Developer Salaries	₦700,000
Development Activities	₦600,000
Infrastructure	₦268,000
Operational	₦100,000
MONTH 3 TOTAL	₦1,668,000

Cost Category	Month 1 (₦)	Month 2 (₦)	Month 3 (₦)	Total (₦)
Development Cost	600,000	600,000	600,000	1,800,000
Testing & QA	-	-	200,000	200,000
Infrastructure Cost	200,000	250,000	200,000	650,000
Operational Cost	100,000	100,000	100,000	300,000
MONTHLY TOTAL	900,000	950,000	1,100,000	2,950,000

💰 FINAL Project Cost Summary

Development

₦1.8M

Core development costs

Testing & QA

₦200K

Quality assurance

Infrastructure

₦650K

3-month setup

Total Project Cost

₦2.95M

Complete 3-month project