Mobile app development for iOS and Android. Native & cross-platform apps with senior engineers, App Store launch support, and fixed quotes in 24 hours.
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Clickmasters designs, builds, and launches mobile apps for iOS and Android — native or cross-platform — for US businesses that need an app users keep, not just download. You get senior mobile engineers, a UX process built around retention, App Store submission handled for you, and a fixed quote before development begins. The three questions every buyer asks — what will it cost, how long will it take, native or cross-platform? — are answered directly on this page: most business apps run $40K–$150K over 12–20 weeks, and for roughly 80% of business cases, cross-platform (Flutter or React Native) is the right call. The detail is below; the shortcut is a free app estimate. [Trust bar: app portfolio count · store ratings of shipped apps · reviews score]
iOS app development](/services/ios-app-development — Swift-native apps when Apple-ecosystem depth matters (HealthKit, ARKit, widgets, watchOS)
Android app development](/services/android-app-development — Kotlin-native apps, including hardware-integrated and enterprise-managed (EMM) deployments
Cross-platform development](/services/cross-platform-app-development — one codebase for both stores with [Flutter](/technologies/flutter/) or [React Native](/technologies/react-native/); 30–40% lower lifetime cost than dual-native
**Progressive Web Apps** — installable, offline-capable web apps when store distribution isn't required — [PWA development](/services/progressive-web-app-development/)
**Backend & API development** — the server side every real app needs: auth, data, notifications, payments — [API development](/services/api-development/)
**App modernization & rescue** — inheriting, stabilizing, and rebuilding apps from previous vendors
**App maintenance** — OS-version updates, store compliance, monitoring, feature roadmap — [maintenance & support](/services/software-maintenance-support/)
We'll put our recommendation for your case in writing, with reasoning — and if native is overkill for your app, we'll say so even though it would bill more. Full analysis: Flutter vs React Native and native vs hybrid vs cross-platform.
**Product discovery (1–2 weeks).** Who is the user, what job does the app do, what's the retention hook? Output: feature map, user flows, fixed quote. Apps fail on definition more than on code — this phase exists to prevent that.
**UX/UI design.** Clickable prototype tested on real users before a line of production code. Store-ready visual design for both platforms' conventions.
**Sprint development.** Two-week sprints; TestFlight / Internal App Sharing builds on your phone from the first month. Backend and app built in parallel.
**QA on real devices.** Automated tests plus manual QA across a physical device matrix (not just simulators) — old Androids included, because your users have them.
**Store launch.** We prepare listings, screenshots, privacy declarations, and review submissions for both stores — and handle the rejection-response cycle if Apple pushes back. Average first-approval rate: [X%; replace with real figure or remove].
**Post-launch.** Crash monitoring, analytics review at day 7/30, and a prioritized v1.1 backlog from real usage data. The app you launch is the start, not the end.
Offline-tolerant architecture · push notifications done respectfully · analytics instrumented from day one (retention funnels, not vanity installs) · accessibility (WCAG-aligned) · app-store privacy compliance (ATT, data-safety forms) · CI/CD so updates ship in days, not release-crunch weekends.
Healthcare apps (HIPAA-compliant messaging, RPM) · FinTech apps (KYC, biometric auth, PCI scope) · Logistics (driver apps, proof-of-delivery) · Restaurants & food delivery · Fitness · Real estate · Field services · All industries →
** 2–3 shipped apps with store links and real metrics]**
- App name / client]** — [category]. [Stack]. Real metric: rating, DAU, retention]** → case study · [App Store ↗] [Google Play ↗]
Backend, admin dashboard, and both platforms are included in these ranges. What moves the number most: third-party integrations, real-time features, and compliance scope — itemized in the app development cost guide.
$30K–$60K for a simple app, $60K–$150K for a typical business app, $150K+ where payments, video, or regulated data are involved — including backend and both platforms. Your fixed quote comes from a 1–2 week discovery.
| Choose | When | Why |
|---|---|---|
Cross-platform (Flutter / React Native) | Business apps, marketplaces, field tools, most consumer apps | One codebase, one team, both stores; near-native performance for typical UI-driven apps |
Native (Swift + Kotlin) | Heavy hardware use (BLE, camera pipelines, AR), console-grade animation, platform-first features | Maximum performance and day-one access to new OS capabilities |
PWA | Internal tools, content apps, no-store-needed distribution | Fastest and cheapest to ship; no store review cycle |
| App complexity | Range | Examples |
|---|---|---|
| Simple (single core flow) | $30K – $60K | Booking app, content app, internal field tool |
| Standard business app | $60K – $150K | Marketplace, delivery app with tracking, patient app with messaging |
| Complex / regulated | $150K – $400K+ | FinTech with KYC + payments, telehealth with video + EHR integration |
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