How Long Does It Take to Build a Mobile App?
Eric Downing
Founder & Lead Developer
"How long will this take?" is the second question everyone asks (right after price). The honest answer: it depends. But here are realistic timelines based on app complexity.
The Quick Answer: 4-16 Weeks
Simple apps like menu or info apps take 4-6 weeks. Standard apps with user accounts, databases, and push notifications need 8-10 weeks. Complex apps with custom integrations, subscriptions, and advanced features require 12-16+ weeks.
What Affects the Timeline?
Five key factors determine how long your app takes:
1. Feature Complexity
A restaurant menu app with static content? 4 weeks. An app with user logins, payment processing, and real-time data? 12+ weeks. Every feature adds time.
2. Design Requirements
Using standard UI components speeds things up. Custom animations, unique interactions, and brand-specific designs add 2-4 weeks.
3. Backend Infrastructure
Apps that only display content are fast. Apps that need databases, APIs, user management, and cloud storage take longer—add 3-6 weeks for robust backend setup.
4. Third-Party Integrations
Connecting to existing systems (Stripe, Mailchimp, your CRM) can take 1-4 weeks per integration depending on API complexity.
5. App Store Requirements
Apple App Store review takes 1-3 days typically. Google Play is faster (hours to 1 day). But if you need specific compliance (healthcare, finance), add extra time for documentation.
Week-by-Week Breakdown
Here's what happens during a typical 8-week app build:
Weeks 1-2: Planning & Design
- Finalize features and user flows
- Design screens and UI mockups
- Set up project infrastructure
- Get your approval on designs
Weeks 3-5: Core Development
- Build main app screens
- Implement user authentication (if needed)
- Connect to backend/database
- Add core functionality
Weeks 6-7: Features & Polish
- Push notifications setup
- Payment integration (if needed)
- Bug fixes and optimization
- UI refinement
Week 8: Testing & Launch
- Final QA testing on devices
- App Store submission
- Address any review feedback
- Go live!
Real Examples
Restaurant Menu App: 5 weeks
- Digital menu with photos
- Location info and hours
- Push notifications
- No user accounts, no payments
Fitness Challenge App: 10 weeks
- User accounts and profiles
- Challenge tracking system
- Leaderboards
- Admin dashboard
- Backend API development
Subscription-Based SaaS App: 14 weeks
- Complex user authentication
- Stripe subscription billing
- Multi-tenant database architecture
- Custom API integrations
- Advanced analytics dashboard
How to Speed Things Up
- Have content ready: Photos, copy, and assets prepared upfront saves 1-2 weeks
- Start with core features: Launch MVP first, add features later
- Quick feedback cycles: Respond to design reviews fast
- Use existing APIs: Don't build custom solutions if third-party tools exist
- Single platform first: Launch iOS or Android first, then add the other
What Slows Projects Down
- Scope creep: Adding features mid-project
- Delayed feedback: Waiting days for design approval
- Missing content: No photos, copy, or branding ready
- Unclear requirements: Changing what the app should do
- Complex integrations: Poorly documented APIs
Get a Timeline for Your App
Every app is different. The best way to get an accurate timeline is to discuss your specific requirements. Schedule a free consultation →