Guide · App Development
How Much Does It Cost to Build a Mobile App? (2026 Guide)
Building a mobile app typically costs between $15,000 and $120,000+, depending on complexity. A simple app with a handful of screens runs roughly $15,000–$35,000, a mid-range app with a custom backend and integrations lands around $35,000–$60,000, and a complex, feature-rich platform starts at $60,000 and climbs past $120,000. Cross-platform frameworks like React Native or Flutter can cut those numbers 30–40% versus building separate native iOS and Android apps.
Key takeaways
- Mobile app cost ranges from ~$15,000 to $120,000+ — simple apps $15k–$35k, medium $35k–$60k, complex $60k–$120k+.
- Cross-platform frameworks like React Native and Flutter cut cost 30–40% versus building separate native iOS and Android apps.
- The backend, integrations, and testing are often 40–60% of the budget — the visible app is only part of the price.
- Plan for ongoing costs of 15–25% of the build price per year for maintenance, plus hosting and app store fees.
- Building an MVP first and phasing the roadmap is the biggest lever for reducing upfront spend without lowering quality.
- App store fees are modest: Apple $99/year, Google Play a $25 one-time fee — stores take 15–30% on in-app purchases.
What Drives Mobile App Development Cost
The price of a mobile app is not a fixed number on a menu — it is the sum of a few decisions you make about scope, platform, and features. Two apps that look similar on the surface can differ by six figures once you account for what happens behind the login screen.
Four variables move the budget more than anything else:
- Scope & feature count. Every screen, workflow, and edge case adds design, build, and testing hours. A 6-screen utility app is a fraction of a 40-screen marketplace.
- Platform choice. iOS only, Android only, both natively, or one shared cross-platform codebase — this alone can swing cost by 30–50%.
- Backend & integrations. User accounts, payments, real-time data, maps, third-party APIs, and admin dashboards are often the largest hidden line item.
- Design complexity. Custom UI, animations, and accessibility work cost more than a clean template-driven interface.
A useful rule of thumb: the visible app is usually 40–60% of the work, and the backend, integrations, testing, and infrastructure make up the rest. When you get a quote, ask what portion covers server-side work — that is where estimates quietly balloon.
App Development Cost by Complexity (2026)
The clearest way to budget is by complexity tier. The ranges below reflect what a US-based agency with in-house design, development, and QA typically charges for a production-ready app — not a throwaway prototype.
| App Type | Typical Examples | Timeline | Estimated Cost |
|---|---|---|---|
| Simple app | Single-platform utility, event or content app, basic booking or directory, no custom backend | 2–4 months | $15,000–$35,000 |
| Medium app | Custom backend, user accounts, payments, push notifications, third-party integrations, admin panel | 4–7 months | $35,000–$60,000 |
| Complex app | Marketplace, on-demand, fintech, real-time data, multiple user roles, advanced security or AI features | 7–12+ months | $60,000–$120,000+ |
Most small-business and startup apps land in the simple-to-medium range. Costs climb into the complex tier when you add real-time features, financial transactions, heavy integrations, or strict compliance requirements. Every range here is approximate and confirmed on a free scoping call once we understand your feature list.
Native vs Cross-Platform: Cost Comparison
One of the biggest cost levers is whether you build separate native apps or share a single codebase across platforms. Native means writing the app in each platform's own language (Swift for iOS, Kotlin for Android). Cross-platform tools like React Native and Flutter let one team ship to both stores from one codebase.
| Approach | What It Means | Relative Cost | Best For |
|---|---|---|---|
| Cross-platform (React Native, Flutter) | One codebase serves both iOS & Android | Baseline (lowest for two platforms) | Most business apps, MVPs, startups on a budget |
| Single native (iOS or Android only) | One platform, built in its native language | Comparable to cross-platform for one OS | Platform-specific products or pilots |
| Dual native (separate iOS + Android) | Two codebases, often two specialist teams | 30–50% more than cross-platform | Performance-critical apps, heavy device-hardware use |
For a mid-range app, cross-platform typically runs $35,000–$60,000, while building the same app twice natively can push it to $50,000–$90,000. The savings come from writing and maintaining one codebase instead of two. Native still wins for graphics-intensive games, AR, or apps that lean hard on device sensors, but for the majority of business apps, cross-platform delivers the same user experience for meaningfully less money.
How to Reduce App Development Cost Without Cutting Corners
You can meaningfully lower cost without shipping a worse product — the key is spending your budget on what earns its keep and deferring the rest.
- Start with an MVP. Build the smallest version that solves the core problem, launch it, and let real user feedback decide what to fund next. This is the single biggest lever and often cuts the first release in half.
- Go cross-platform. React Native or Flutter reaches both app stores from one codebase, saving 30–40% versus dual native for most business apps.
- Phase the build. Ship in stages with clear milestones instead of paying for every feature up front. You control spend and can stop or pivot between phases.
- Use proven integrations. Off-the-shelf services for payments, auth, and notifications are cheaper and safer than custom-building commodity plumbing.
- Prioritize ruthlessly. Sort features into must-have, should-have, and nice-to-have. Everything past must-have is a candidate for a later release.
Cutting cost is not the same as cutting quality. As a 100% in-house Houston team with 20+ years and 700+ projects behind us, we scope apps so your budget goes into the features users actually touch — and we tell you honestly where you can wait.
Frequently asked questions
What is the cheapest way to build a mobile app?
The cheapest path to a real, usable app is a cross-platform MVP: build a minimum viable product with React Native or Flutter that covers only your core feature set, launch it, and expand based on user feedback. This typically starts around $15,000–$35,000. No-code tools can be cheaper still for very simple apps, but they hit limits fast on custom features, performance, and scale, so they are best for quick validation rather than a product you plan to grow.
How much does it cost to maintain an app each year?
Budget roughly 15–25% of the original build cost per year for maintenance. For a $40,000 app, that's about $6,000–$10,000 annually, covering bug fixes, OS updates, security patches, and small improvements. On top of that you'll have cloud hosting and third-party service fees, which vary with your traffic and usage. Apps that skip maintenance tend to break when Apple or Google release new OS versions.
How long does it take to build a mobile app?
A simple app usually takes 2–4 months, a medium app with a custom backend 4–7 months, and a complex app 7–12 months or more. Timeline and cost move together — more features mean more design, development, and testing hours. Phasing the build and starting with an MVP is the fastest way to get a working app into users' hands while keeping the initial timeline and budget contained.
Is it cheaper to build for iOS or Android first?
Building for a single platform costs about the same whether you choose iOS or Android — the difference is which audience you reach first. If you want both platforms, a cross-platform framework is almost always cheaper than building two native apps, since one codebase serves iOS and Android. Choose the platform your target users actually favor rather than assuming one is inherently cheaper to develop.
Why do app development quotes vary so much?
Quotes vary because 'an app' can mean anything from a 6-screen utility to a real-time marketplace with payments and multiple user roles. The biggest differences come from feature scope, backend and integration complexity, whether you build native or cross-platform, and the team's location and experience. A very low quote often excludes backend work, QA, or maintenance — always ask what is and isn't included before comparing prices.
Does adding AI features increase app cost?
Yes, but not always by as much as people expect. Using established AI APIs for features like chat assistants, recommendations, or image recognition adds moderate cost and integrates cleanly. Training custom models or running on-device AI costs more and adds infrastructure. The smart approach is to add AI where it clearly improves the user experience or automates real work, and to start with proven APIs before investing in anything custom.