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App Dev Cost Calculator

Estimate development cost, timeline, and team size for your mobile app — based on complexity, platform, features, and team location.

Guide: What Determines App Development Cost

Most founders get their first quote and have no context to evaluate it. Here's what actually drives cost — and what you can control.

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What Drives App Cost

Cost is determined by 4 variables: complexity (number of features + backend requirements), platform (iOS, Android, or both), team location (hourly rates vary 4× between US and Asia), and design quality. Change any one of these and cost shifts dramatically.

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Hourly Rates by Region

US/Canada: $120–200/hr. Western Europe: $80–140/hr. Eastern Europe: $40–80/hr. Asia (India, SE Asia): $20–50/hr. Senior engineers cost 2–3× junior rates regardless of region. Always evaluate portfolio and communication, not just rate.

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iOS Only vs Both Platforms

Building for both iOS and Android doesn't cost 2×. With cross-platform frameworks (React Native, Flutter), shared code reduces the overhead to ~1.5–1.7×. Native development for both platforms is ~1.8–2× the cost of one platform.

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Backend Complexity Multiplier

A backend with real-time features, complex data models, or third-party integrations can cost as much as the app itself. Simple CRUD backends are cheaper and faster. Plan your backend scope before getting quotes.

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Design Budget

Good UX/UI design typically adds 15–25% to total cost. Skipping professional design and using templates saves upfront but increases user churn. For consumer apps competing in crowded markets, design is often the differentiator.

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Budget for Iteration

Add 20–30% buffer to any estimate for scope creep, revision cycles, bug fixes, and App Store rejection resolution. Very few apps ship exactly on budget. The ones that do had extremely tight, well-defined specs upfront.

Comparison: Development Models

Your choice of development model affects cost, speed, quality, and risk. Here's the honest breakdown of each option.

ModelCostSpeedRiskBest For
FreelancerLowest ($15–80/hr)VariableHigh — solo dependency, no redundancyMVPs, simple features, tight budgets
Offshore AgencyLow-Medium ($25–60/hr)MediumMedium — language and timezone gapsCost-sensitive projects with clear specs
Nearshore AgencyMedium ($50–100/hr)Medium-FastLow-MediumBalance of cost and communication
US/EU AgencyHigh ($100–200/hr)FastLowEnterprise, complex apps, funded startups
In-House TeamHighest (salary + benefits + overhead)Depends on hiring speedLow execution, high costPost-PMF companies building long-term
No-Code / Low-CodeVery Low (platform fees)Very FastPlatform lock-inValidation MVPs before committing to full dev

App Development Cost Glossary

Key terms for scoping, estimating, and budgeting mobile app development.

app development costMVP costmobile app budgetdevelopment estimateapp development timelineReact Native costFlutter costnative app costcross-platform developmentoffshore developmentnearshore agencyin-house teamapp development hourly ratebackend development costUI/UX design costApp Store submissionGoogle Play feeapp maintenance costpost-launch costtech stack costQA testing costDevOps coststartup appfounder budgetVC-funded appbootstrap appMVP developmentscope creepagile estimate

Frequently Asked Questions

How much does a simple app cost to build in 2026?
A simple app — think 3–8 screens, basic CRUD operations, no complex backend — costs roughly $15K–40K for a single platform (iOS or Android) with an Eastern European agency. US/EU rates push this to $60K–150K. The biggest variable is hourly rate, not technical complexity.
How much more does it cost to build for both iOS and Android?
With a cross-platform framework like React Native or Flutter, building for both platforms adds roughly 50–70% over a single platform, not 100%. You share UI components and business logic; only platform-specific integrations (notifications, payments, camera) need separate work. Pure native development for both is closer to 1.8–2×.
What's usually not included in developer quotes?
Backend infrastructure costs (servers, databases, CDN), App Store developer accounts ($99/yr Apple, $25 one-time Google), third-party API subscriptions (Stripe, Twilio, Google Maps), post-launch maintenance, ASO and marketing, and QA testing (some agencies include it, many don't). Budget 15–20% annually for ongoing maintenance.
Should I build an MVP or a full app?
Almost always start with an MVP that tests your core assumption with real users. An MVP typically costs 30–50% of a full app and ships in 2–4 months vs 8–12. The insights from real user behavior will fundamentally change your full-app spec — often making it cheaper, not more expensive, because you cut features users didn't actually want.
How do I know if an agency quote is reasonable?
Get 3–5 quotes for the same spec. A reasonable quote breaks down cost by feature or module, not a single lump sum. Ask to see their previous apps live in the stores, speak with 2 references, and verify their portfolio apps work on current OS versions. Suspiciously cheap quotes usually mean offshore junior teams, hidden revision costs, or scope assumptions that don't match yours.
What increases app development cost the most?
In order of impact: (1) real-time features like chat or live feeds, (2) AI/ML features, (3) complex backend with many integrations, (4) targeting both platforms, (5) payment processing and subscriptions (compliance requirements), and (6) offline mode with sync. Each of these can add 15–25% to your base estimate.