A mobile app costs $40,000 to $80,000 for a straightforward product, $80,000 to $150,000 for a mid-complexity app with integrations, and $150,000 to $300,000 or more for a complex platform with custom backend systems. Published industry cost surveys (Clutch, BuildFire) cluster in the same ranges, and most buyers should add 15–20% of the build cost per year for maintenance and updates.
Key takeaways
- Simple apps run $40,000–$80,000; mid-complexity $80,000–$150,000; complex platforms $150,000–$300,000+.
- US development rates ($100–$180/hour) roughly triple offshore pricing ($25–$75/hour).
- Design, QA, and project management typically add 25–35% on top of coding hours.
- Budget 15–20% of the build cost annually for maintenance, updates, and OS changes.
- A scoped MVP is the cheapest credible path to market for most first-time app owners.
What drives the cost of building a mobile app
Two variables explain most of the invoice: how many features you build and who builds them. Everything else — design polish, testing, project management — scales with those two.
| Cost driver | Typical impact |
|---|---|
| Number and depth of features | Each significant feature adds $5,000–$25,000 depending on complexity |
| Custom backend and integrations | Adds $20,000–$80,000 over an off-the-shelf backend |
| Both iOS and Android (native) | Roughly 1.5–1.8x a single-platform build; cross-platform frameworks reduce this |
| Custom design and motion | Adds $10,000–$40,000 versus template-based UI |
| Team location | US rates ($100–$180/hr) vs Western Europe ($80–$150/hr) vs South Asia ($25–$50/hr) |
| Compliance (HIPAA, PCI, GDPR) | Adds 10–25% for regulated products |
A feature list you can hold to five or six core screens is the single biggest saving available. Most over-budget apps are over-budget because scope crept, not because hourly rates rose.
Cost by app complexity
| Tier | What it looks like | Typical range |
|---|---|---|
| Simple | Consumer utility, booking, content — 3–5 screens, no custom backend | $40,000–$80,000 |
| Mid-complexity | Custom UI, API integrations, payments, user accounts, both platforms | $80,000–$150,000 |
| Complex | Real-time features, marketplace logic, streaming, AI features, custom infrastructure | $150,000–$300,000+ |
These are build costs, not total first-year cost. Add app-store fees, cloud hosting ($500–$5,000/month at moderate scale), third-party services, and a support plan.
What you actually pay for beyond coding
Quotes that look cheap usually exclude the roles a production app needs:
- Product scoping and UX design — 15–20% of project cost
- QA and testing on real devices — 10–15%
- Project management — 10–15%
- Launch support and app-store review cycles — often unbudgeted
Ask vendors to break quotes into these lines. A blended “per screen” price hides whether testing and design are actually included.
Region and engagement model
Hiring a dedicated offshore team runs $25–$75 per developer-hour; US agencies bill $100–$180. A mid-complexity app that takes 1,200 engineering hours costs roughly $40,000–$70,000 offshore versus $130,000–$200,000 onshore. Blended models — a US-facing team with offshore delivery, like Syndell’s software development company in the USA practice and its London delivery team — price between the two and keep time-zone overlap with US and UK stakeholders.
Fixed-price suits a fully specified first version; time-and-materials or a dedicated team suits anything with a changing roadmap. Syndell’s mobile app development team quotes both structures, and its custom app development team handles builds that outgrow standard app templates.
How much does it cost to maintain a mobile app?
Plan 15–20% of the original build cost per year — a $100,000 app needs roughly $15,000–$20,000 annually for OS updates, library upgrades, bug fixes, and small features. Skipping this is the most common reason apps break within 18 months of launch.
Is it cheaper to build cross-platform or native?
Cross-platform frameworks (Flutter, React Native) typically cut total build cost 25–35% versus two native codebases, with minor trade-offs in performance-critical apps. Syndell’s guide to choosing the right tech stack for a mobile app covers when native still wins.
How long does it take to build a mobile app?
A simple app ships in 3–4 months, mid-complexity in 5–8, and complex platforms in 9–12+. Timeline tracks scope almost linearly — cutting scope is the fastest way to cut both time and cost.
One last thing
The cheapest quote is rarely the cheapest app. Low bids assume template UI, thin testing, and no post-launch support — the three things that surface as rewrite costs in year one. Before comparing vendors, fix the feature list and make every bidder price the same scope. Syndell’s guide to estimating custom software development cost walks through that scoping exercise step by step.
