What Determines How Much a Mobile App Costs?
After 50+ builds, we've found the same five things move the number. Here they are.
1. Complexity: How many screens, how many features, how many integrations, how much logic underneath. A 5-screen calculator app runs roughly 10x cheaper than a 50-screen marketplace that needs payments, chat, and real-time tracking all at once.
2. Platform: Picking one platform (iOS or Android) shaves about 40% off building both. Going cross-platform with Flutter or React Native lands around 60% of what two native builds would cost you.
3. Design: Off-the-shelf UI components are one price. Custom animations, illustrations, and the little interaction details are another. Going bespoke usually adds 20-40% on top of the design budget.
4. Team location: This one's blunt. US developers cost 3-5x what Indian developers charge for the very same work, and Eastern Europe falls somewhere in the middle.
5. Backend complexity: A plain REST API is cheap. Real-time sync is pricier. Full microservices is pricier still. Every step up adds to both the bill and the calendar.
What Does a Simple App Cost to Build?
What you get: 5 to 10 screens, basic login, simple create-read-update-delete operations, and one third-party hook (maps, payments, or notifications) on standard UI components.
Examples: a calculator, a timer or alarm, a no-frills task manager, a business card scanner, a basic recipe app, an event countdown. That kind of thing.
Timeline: 6 to 8 weeks with a 2-person team.
Team: one developer plus a part-time designer. In India that's $10,000-$15,000. In the US, $20,000-$40,000.
Apps like these usually earn through ads or act as a companion to a business you already run. Nobody's getting venture funding for them. They just do one job well, and that's the point.
What Does a Medium-Complexity App Cost?
What you get: 15 to 30 screens, login with social sign-in, Stripe payments, real-time bits like chat and notifications, maps and geolocation, an admin panel, multiple user roles, push notifications, and analytics on top.
Examples: an e-commerce app, food delivery, a fitness tracker with a social layer, a booking or reservation system, a stripped-down ride-sharing app, a property listing app.
Timeline: 3 to 5 months with a 3-4 person team.
Team: two developers, one designer, one QA, and a part-time PM. India runs $25,000-$45,000. The US runs $60,000-$120,000.
Honestly, this is the sweet spot for funded startups. You get enough features to prove product-market fit, enough polish that people actually stick around, and enough architecture to reach 50,000 users without a rewrite. Want our team to build it? You can bring on mobile app developers from our side, or look at our full mobile app development services.
What Does a Complex App Cost to Build?
What you get: 40+ screens, real-time sync, video calling or streaming, AI features, multiple languages, offline mode, and the gnarly payment flows like subscriptions and marketplace payouts. Add compliance work (HIPAA, PCI DSS), deep analytics, and integrations into outside EHR or CRM systems.
Examples: a telemedicine platform, a fintech app with KYC, a marketplace juggling buyer, seller, and admin roles, a fleet management system, an enterprise productivity suite.
Timeline: 6 to 12 months with a 5-8 person team.
Team: three to five developers, a designer, two QA, a DevOps engineer, and a PM. India runs $75,000-$150,000. The US runs $150,000-$400,000.
With complex apps, the architecture has to be planned before anyone writes code. Skip that and you'll be rebuilding three to six months in. We've watched it happen. That redo costs far more than getting it right the first time.
How Do App Development Costs Compare by Region?
United States: $150-$300/hour. A senior iOS developer in SF pulls $180,000-$220,000/year. It's the priciest option on the planet, but you get the biggest talent pool and the easiest conversations.
United Kingdom: $100-$200/hour. Senior developers earn £70,000-£100,000/year. Timezone lines up nicely with EU clients, and the quality bar is high.
Eastern Europe (Poland, Ukraine, Romania): $40-$80/hour. Solid technical schooling, EU timezone overlap, good English. European companies reach here a lot.
India: $25-$50/hour. The country has a 5.7M developer pool and adds 1.5M graduates every year. Work with an established agency and you keep the quality without the price tag. Our senior developers ship the same quality as their US counterparts at a 60-75% saving.
The comparison that actually matters: the same medium-complexity app runs $25K-$45K out of India, $50K-$80K out of Eastern Europe, and $80K-$150K out of the US. What you hand over at the end, a working, polished, production-ready mobile app, doesn't change.
