Mobile app development cost varies more than almost any other software estimate, since "an app" can be a five-screen loyalty card or a full logistics platform with offline maps and real-time driver tracking. To compare quotes, first separate the variables that really move the price from the ones that only seem like they should.
The decisions that set the price
The single biggest cost driver is platform choice: native iOS and Android built separately, or a cross-platform codebase shared across both. Flutter and React Native let one engineering team ship to both app stores from a single codebase, which typically cuts total build cost by 25-40% compared to two fully native builds, at the price of occasional platform-specific workarounds for things like deep camera control or background location.
The second driver is offline behaviour. An app that only works with a live connection is simpler to build than one that needs to queue actions locally and sync them later, which matters enormously for field service, logistics or retail apps used in basements, warehouses or rural areas with patchy signal. The third driver is what the app talks to: a payment processor, a mapping API, a push notification service, or an existing backend that was never designed for mobile traffic patterns.
Typical price ranges by app type
| App type | Typical range | What pushes it higher |
|---|---|---|
| Simple utility or content app (no backend) | $25,000 - $50,000 | Custom animations, in-app purchases |
| Companion app to an existing web product | $40,000 - $90,000 | Push notifications, deep linking, biometric login |
| Booking or scheduling app with payments | $60,000 - $140,000 | Calendar sync, multi-vendor support, refund logic |
| Field service or logistics app with offline sync | $90,000 - $220,000 | Background location, barcode/RFID scanning, route optimization |
| Two-platform native app (separate iOS/Android teams) | $150,000 - $350,000+ | Platform-specific features, high-security requirements |
A mobile app development quote near the bottom of any row usually assumes a cross-platform build with a small, stable screen count; quotes near the top usually reflect native development, heavier offline requirements, or both.
A worked example for pricing a field technician app
Consider a field service company that needs technicians to see their daily job list, capture photos and signatures, and update job status while offline in areas with no signal, syncing everything once connectivity returns. Built on Flutter with a lightweight local database for offline queueing:
- Discovery and workflow mapping with dispatch and field staff: 1-2 weeks
- UI design for roughly 15 screens across technician and dispatcher views: 2-3 weeks
- Offline sync engine and conflict resolution: 3-4 weeks
- Core feature build (job list, photo capture, signatures, status updates): 4-5 weeks
- Integration with the existing dispatch backend: 2-3 weeks
- QA across a range of physical devices and network conditions: 2-3 weeks
This typically lands between $95,000 and $140,000 depending on how much the existing dispatch system's API needs rework to support mobile traffic, with a 14-18 week timeline.
Where the money goes by phase
| Phase | Share of budget |
|---|---|
| Discovery and UX flow mapping | 8-10% |
| UI design (including states for offline, error, empty) | 15-20% |
| Engineering | 45-50% |
| QA across devices and OS versions | 12-16% |
| App store submission and launch support | 5-8% |
QA takes a larger share on mobile than on web because device fragmentation is real: a feature that works cleanly on a recent iPhone can behave differently on a three-year-old Android device with a smaller amount of available memory, and testing across that range takes real hours.
How team location affects the number
Rates for mobile engineers vary by market for the same reasons rates vary in any software discipline: local cost of living, demand for the specific platform skill, and currency. A team billing from a lower-cost market can produce the same app quality as a team in a higher-cost one; the differences worth asking about are time zone overlap for daily standups, and how much experience the team has actually shipping to the specific app store category you're in (health apps and fintech apps face tighter App Store and Play Store review scrutiny than a game or utility app).
Hidden costs beyond the build
- App store fees: Apple and Google each charge an annual developer account fee, separate from your build cost
- Push notification and analytics services: most apps need a paid tier once user volume grows
- Ongoing OS compatibility work: Apple and Google ship major OS updates yearly, and apps need periodic updates to stay compliant with new APIs and privacy rules
- Device lab or cloud device testing: budgeting for QA on real devices in addition to simulators
- Backend hosting, if the app needs a dedicated API rather than reusing an existing one
Skipping the post-launch maintenance conversation is the most common regret we hear from teams that built an app once and assumed it was done. An app store submission can be rejected for reasons unrelated to your code, like a policy change, and someone needs to own that relationship going forward; a software maintenance retainer is the usual way to cover it.
iOS only, Android only, or both at launch
Launching on a single platform first is a legitimate way to control early cost, and worth considering seriously rather than defaulting to "we need both app stores on day one." If your users are known to skew heavily toward one platform (iOS in North American consumer markets, for instance, or Android in parts of Asia and the Middle East), launching narrow and expanding once you have real usage data can cut initial cost by close to half compared to building both simultaneously. The tradeoff is a delayed launch on the second platform and the risk of alienating users who expected day-one availability everywhere, so the right call depends on where your actual audience is rather than on convention.
Common mistakes that inflate mobile app cost
A few patterns show up repeatedly in mobile projects that run over budget:
- Designing for an idealized device instead of the real device mix. An interface that assumes a large, recent phone can look broken on an older or smaller-screen device, and discovering this during QA rather than design means rework.
- Underestimating app store review cycles. Both Apple and Google can reject a submission for reasons that have nothing to do with functionality, and treating the first submission as the only one needed leads to missed launch dates.
- Skipping a real offline-behavior specification. "The app should work offline" is not a specification; it needs to define exactly what data syncs, in what order, and what happens on conflict.
- Adding native-only features to a cross-platform build late. Deciding mid-build that you need a feature only available through platform-specific code can undercut the cost savings that justified going cross-platform in the first place.
Native, cross-platform, or a booking system builder
Not every app idea needs custom development from zero. If what you actually need is scheduling and payments rather than a fully bespoke experience, a purpose-built booking system may get you to market faster than a custom app; if the core need is tracking vehicles or crews, a fleet management platform might already solve most of the problem. Worth raising with your vendor before committing to a from-scratch build.
Questions to ask before you accept a quote
- Is this quote for one cross-platform codebase or two separate native builds?
- What's included for offline behaviour, and what counts as a change request later?
- Who handles app store submission, and what happens if it's rejected on the first attempt?
- What's the plan for OS updates in year one?
- Does the estimate include real-device QA or simulator testing only?
Frequently asked questions
Is Flutter or React Native cheaper to build with?
The two frameworks are close enough in raw engineering cost that the bigger factor is usually your team's existing experience with one or the other, or which one has better-maintained plugins for the specific device features you need. See Flutter vs React Native for a fuller comparison.
How much does it cost to maintain an app after launch?
Ongoing maintenance for a mobile app typically runs 15-20% of the original build cost per year, covering OS compatibility updates, bug fixes and small feature requests, separate from any backend hosting costs the app depends on.
Do app store fees add much to the total cost?
The developer account fees themselves are a small annual cost compared to a build budget. The bigger cost driver tied to the app stores is engineering time spent handling review rejections and complying with each store's changing policies over time.
Can I build an MVP mobile app cheaper than a full version?
Yes, and it's usually the right approach for a new product idea. Scoping down to the single core workflow and deferring secondary features (social sharing, advanced personalization, admin dashboards) to a later release can bring the initial build well below the ranges in this guide. See how to build an MVP for how to scope that first version.
Getting a scoped number
Ranges help you sanity-check a quote, but your actual number depends on your specific screens, integrations and offline requirements. Bring a rough feature list or even a competitor app you like to a get a quote conversation, and our process will turn it into a scoped estimate rather than a guess; see our pricing page for how engagement models typically work.
