Web App Development & Fixes
Content
Professional documentation and insights
Web App Development & Fixes
Transform AI-generated web applications into professional, scalable products. We fix ChatGPT prototypes, Copilot code, and no-code exports to create web apps that actually work in production.
The Web App Problem
AI can build a working demo in hours, but production web apps need more:
- Scalability - Handle thousands of concurrent users
- Security - Protect against attacks and data breaches
- Performance - Load in under 3 seconds
- Reliability - 99.9% uptime without crashes
- Maintainability - Easy to update and extend
We bridge the gap between prototype and production.
What AI Gets Wrong
Security Holes
Common Issues:
- Hardcoded API keys and secrets
- No input validation
- Missing authentication
- Exposed admin endpoints
- SQL injection vulnerabilities
Our Fixes:
- Environment-based configuration
- Comprehensive input validation
- JWT or session-based auth
- Role-based access control
- Parameterized database queries
Performance Problems
Common Issues:
- Loads all data at once
- No caching strategy
- N+1 database queries
- Unoptimized images
- No lazy loading
Our Fixes:
- Pagination and infinite scroll
- Redis caching layer
- Query optimization
- Image compression and CDN
- Code splitting and lazy loading
Poor Architecture
Common Issues:
- Everything in one file
- Mixed concerns (UI + logic + data)
- No error handling
- Hardcoded values everywhere
- No tests
Our Fixes:
- Clean folder structure
- Separation of concerns
- Comprehensive error handling
- Configuration management
- 70%+ test coverage
What We Build
SaaS Applications
Multi-tenant platforms with subscriptions and billing.
Features:
- User authentication and management
- Subscription plans and billing (Stripe)
- Team/organization workspaces
- Role-based permissions
- Usage analytics and reporting
- Email notifications
Examples: Project management tools, CRM systems, analytics platforms
E-Commerce Platforms
Online stores with cart, checkout, and inventory.
Features:
- Product catalog with search/filters
- Shopping cart and checkout
- Payment processing (Stripe, PayPal)
- Order management
- Inventory tracking
- Customer accounts
Examples: Online stores, marketplaces, booking systems
Content Management Systems
Custom CMS for blogs, documentation, or media.
Features:
- Rich text editor
- Media library
- Content workflow (draft/publish)
- SEO optimization
- Multi-language support
- API for headless CMS
Examples: Blogs, documentation sites, news platforms
Real-Time Applications
Apps requiring live updates and collaboration.
Features:
- WebSocket connections
- Live data synchronization
- Presence indicators
- Real-time notifications
- Collaborative editing
- Chat functionality
Examples: Chat apps, collaboration tools, live dashboards
Our Tech Stack
Frontend Options
React - Most popular, great ecosystem
- Next.js for server-side rendering
- TypeScript for type safety
- Tailwind CSS for styling
- React Query for data fetching
Vue - Easy to learn, flexible
- Nuxt.js for full-stack apps
- Vue 3 Composition API
- Pinia for state management
Svelte - Fastest performance
- SvelteKit for full apps
- Minimal bundle size
- Native reactivity
Backend Options
Node.js - JavaScript everywhere
- Express, Fastify, Koa or NestJS
- Prisma ORM
- Drizzle ORM
- JWT authentication
Python - Data and AI integration
- FastAPI or Django
- SQLAlchemy ORM
- Great for ML features
Go - High performance
- Gin, Echo or Goji framework
- Excellent concurrency
- Low resource usage
Database & Infrastructure
Databases:
- PostgreSQL for relational data
- MongoDB for flexible schemas
- Redis for caching
- S3 for file storage
Hosting:
- AWS, Google Cloud, or Azure
- Vercel or Netlify for static
- Docker containers
- CI/CD pipelines
Development Process
1. Code Audit (2-3 days)
We review your existing code:
- Security vulnerabilities
- Performance bottlenecks
- Architecture issues
- Missing features
Deliverable: Technical audit report with priorities
2. Planning (3-5 days)
We design the solution:
- Architecture blueprint
- API design
- Database schema
- Feature roadmap
Deliverable: Technical specification
3. Development (4-12 weeks)
We build production-ready code:
- Clean, modular codebase
- Comprehensive testing
- Performance optimization
- Security hardening
Deliverable: Fully functional web app
4. Deployment (1 week)
We launch your app:
- Production environment setup
- Domain and SSL configuration
- Database migration
- Monitoring and alerts
Deliverable: Live application with documentation
Pricing & Timeline
Code Refactoring
$5,000 - $15,000 | 2-4 weeks
Fix existing AI-generated code:
- Security improvements
- Performance optimization
- Bug fixes
- Basic testing
Best for: Salvaging existing prototypes
MVP Development
$15,000 - $30,000 | 6-8 weeks
Build production MVP:
- Core features only
- Clean architecture
- Basic auth and payments
- Deployment
Best for: Testing market quickly
Full Production App
$30,000 - $80,000 | 10-16 weeks
Complete web application:
- Full feature set
- Advanced integrations
- Comprehensive testing
- Performance optimization
- Documentation
Best for: Launching complete product
Maintenance & Support
$2,000 - $5,000/month
Ongoing support:
- Bug fixes
- Feature updates
- Security patches
- Performance monitoring
- Priority support
Best for: Keeping app current
Success Stories
SaaS Platform Rescue
Challenge: ChatGPT-built project management tool crashed with 20+ users, no authentication.
Solution: Rewrote auth system, optimized database queries, added caching, fixed memory leaks.
Results: Now handles 5,000+ users, 99.9% uptime, 2-second load time.
E-Commerce Performance Fix
Challenge: AI-generated store took 15 seconds to load, checkout broken on mobile.
Solution: Implemented image optimization, added CDN, fixed mobile checkout flow, optimized queries.
Results: Load time reduced to 1.8 seconds, mobile conversion up 240%, 4.8-star reviews.
Real-Time Dashboard
Challenge: Analytics dashboard refreshed every 30 seconds, lost data on refresh.
Solution: Added WebSocket for real-time updates, implemented proper state management, fixed data persistence.
Results: Live updates, zero data loss, team adoption increased from 40% to 100%.
Why Choose Us
AI Code Experts
We know exactly what patterns AI generates and how to fix them quickly.
Full-Stack Experience
We handle everything from database to frontend, no need for multiple vendors.
Production Focus
We build for real users and real traffic, not just demos.
Transparent Process
Clear milestones, regular updates, no surprises.
You Own Everything
Complete code ownership, no vendor lock-in.
Getting Started
1. Free Consultation (30 min)
Discuss your needs:
- Review current prototype
- Identify key issues
- Discuss scope and timeline
- Get ballpark estimate
2. Code Audit (Optional)
$1,500 - $3,000 | 2-3 days
Get detailed assessment:
- Security review
- Performance analysis
- Architecture evaluation
- Prioritized recommendations
3. Proposal
Receive comprehensive proposal:
- Detailed scope
- Fixed pricing
- Timeline with milestones
- Deliverables
4. Development
Transparent execution:
- Weekly progress updates
- Demo sessions every 2 weeks
- Your feedback incorporated
- Continuous testing
FAQ
How long does web app development take?
Refactoring: 2-4 weeks. MVP: 6-8 weeks. Full app: 10-16 weeks. Timeline depends on complexity and features.
What if I only have a rough idea?
We can help define requirements and create specs. Many clients start with just a concept.
Can you work with my existing team?
Yes, we can augment your team or work independently. Whatever works best for your situation.
Do you provide hosting?
We can set up and manage hosting, or deploy to your infrastructure. We work with all major cloud providers.
What about ongoing maintenance?
We offer maintenance packages starting at $2,000/month, or we can train your team to maintain the code.
How do payments work?
Typically 30% upfront, then milestone-based payments. Final 20% on completion and approval.
Ready to Build Your Web App?
Transform your AI prototype into a professional web application that scales.
Get in Touch to discuss your project.
Related Services
- Mobile Apps - Build iOS and Android apps
- Internal Tools & Dashboard - Custom business tools
- AI Code Fixing Guides - DIY code improvements
Last updated: December 14, 2025