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How Long Does It Take to Build a Mobile App?

E

Eric Downing

Founder & Lead Developer

January 16, 20257 min
How Long Does It Take to Build a Mobile App?

"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 →

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