How Long Does It Take to Build a Mobile App?
iOS and Android development timelines — agency vs freelancer vs in-house.
Start your project →Week-by-week timeline
Scoping & design
Week 1- ✓Feature prioritization
- ✓Mobile UI/UX
- ✓Backend architecture
- ✓App Store prep
Development
Weeks 2–3- ✓React Native build
- ✓Backend + auth
- ✓Push notifications
- ✓Payments integration
Launch
Week 3- ✓Device QA
- ✓App Store submission
- ✓Play Store submission
- ✓Production launch
What affects the timeline
Platform count
Both iOS + Android with React Native: 21 days. Native Swift + Kotlin separately: 2× timeline.
Backend complexity
Simple CRUD: baseline. Real-time, payments, multi-role: add 1–2 weeks.
App Store review
First submission: 1–3 days Apple, 3–7 days Google. Rejections add 2–5 days.
Timeline comparison
| Option | Timeline | Notes |
|---|---|---|
| Our agencyUs | 21 days | Scoped mobile MVP |
| Freelancer | 2–4 months | Availability gaps |
| In-house hire | 4–8 months | Includes recruiting |
Frequently asked questions
Fastest path to App Store?
Ruthless scoping + React Native + Expo + experienced team = 21 days. Cutting scope is the biggest lever.
Start your Mobile App in 21 days
Fixed price. Senior team. You own the code from day one.
Get a free scoping call →More app development timelines
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