Mobile App Development
Build native iOS and Android applications along with cross-platform frameworks using optimized code paths to deliver fluid UI animations, background data sync profiles, and secure local device security.
What we focus on
From strategy to launch, we help you build Engineering solutions that are reliable, scalable, and ready for the future.
- Consumer apps
- Enterprise tools
- Companion apps
React Native
Flutter 3
Expo
Swift UI
Kotlin Jetpack
Firebase
Supabase
RevenueCat
FastlaneWe build systems that scale.
Mobile app development is the design and engineering of applications that run on iOS and Android phones and tablets, built either as fully native apps or with cross-platform frameworks that share a single codebase. XOVO works across nine frameworks and platform tools for this, from React Native and Flutter 3 for shared codebases to SwiftUI and Kotlin Jetpack Compose when an app leans on platform-specific hardware or deep OS integration. It covers the on-device UI, local data storage, offline behavior, and the integrations and store submissions needed to ship to the App Store and Google Play. Every app is engineered offline-first, with state and queued mutations cached locally so it stays usable on poor connections and reconciles cleanly once the device reconnects. In-app purchases are wired through RevenueCat, which handles receipt validation and entitlement state across both platforms, and a Fastlane-driven pipeline automates builds, signing, and store uploads. Over-the-air updates let many JavaScript fixes reach installed apps directly, without waiting on a full store resubmission.
Everything in one place
- Production iOS and Android builds (native via SwiftUI/Kotlin Jetpack Compose, or cross-platform via React Native or Flutter 3) with the full source repository and signing assets handed over to you
- Configured App Store Connect and Google Play Console listings, including provisioning profiles, signing keys, store metadata, screenshots, and a submitted build that has passed review
- A Fastlane-driven CI/CD pipeline that automates builds, code signing, screenshot generation, and store uploads to TestFlight and Play internal testing tracks
- Backend and data layer wiring to Firebase or Supabase (auth, realtime database/Postgres, storage, push tokens) plus RevenueCat for in-app purchases and subscriptions, where applicable
- Offline-first sync logic and secure on-device storage using the iOS Keychain and Android Keystore for tokens and sensitive data
- Crash reporting, analytics, and over-the-air update configuration (Expo Updates or CodePush-style flow) so you can ship JS-layer fixes without a full store resubmission
Ready to get started?
Book a free scoping call and we'll map Mobile App Development to your workflow.
- A 30-minute call with a senior engineer, not a salesperson
- A tailored rollout plan scoped to your existing stack
- A straight answer on timeline and cost, no pressure to commit
A clear process. Predictable results.
Platform & architecture decision
We choose the build path with you: native SwiftUI/Kotlin Jetpack Compose versus cross-platform React Native or Flutter 3, based on hardware needs, animation demands, team handover plans, and budget. We define target OS versions, device matrix, the offline data model, and which backend (Firebase or Supabase) fits.
Navigation & UI prototyping
We build the navigation graph and key screens as an interactive prototype on real devices, validating gestures, transitions, and tab/stack flows early. Animation-heavy interactions are tuned against a frame budget so they stay smooth on mid-range and older hardware, not just flagship phones.
Feature build & integration
Development runs in sprints wiring up the data layer, auth, push notifications, secure Keychain/Keystore storage, and any in-app purchases through RevenueCat. Each sprint produces an installable build distributed via TestFlight and Play internal testing so you can use the app on your own device throughout.
Device testing & store prep
We test across a range of screen sizes, OS versions, and conditions including offline, low memory, and interrupted purchases. We assemble store assets, privacy nutrition labels and Play Data safety entries, permission strings, and signing configuration so the submission clears review without back-and-forth.
Submission, release & OTA support
We submit to the App Store and Google Play, manage phased rollout, and wire up crash reporting and analytics. Post-launch we maintain the Fastlane release pipeline and use over-the-air updates to push eligible fixes quickly while scheduling native updates around store review windows.
Platform & architecture decision
We choose the build path with you: native SwiftUI/Kotlin Jetpack Compose versus cross-platform React Native or Flutter 3, based on hardware needs, animation demands, team handover plans, and budget. We define target OS versions, device matrix, the offline data model, and which backend (Firebase or Supabase) fits.
Navigation & UI prototyping
We build the navigation graph and key screens as an interactive prototype on real devices, validating gestures, transitions, and tab/stack flows early. Animation-heavy interactions are tuned against a frame budget so they stay smooth on mid-range and older hardware, not just flagship phones.
Feature build & integration
Development runs in sprints wiring up the data layer, auth, push notifications, secure Keychain/Keystore storage, and any in-app purchases through RevenueCat. Each sprint produces an installable build distributed via TestFlight and Play internal testing so you can use the app on your own device throughout.
Device testing & store prep
We test across a range of screen sizes, OS versions, and conditions including offline, low memory, and interrupted purchases. We assemble store assets, privacy nutrition labels and Play Data safety entries, permission strings, and signing configuration so the submission clears review without back-and-forth.
Submission, release & OTA support
We submit to the App Store and Google Play, manage phased rollout, and wire up crash reporting and analytics. Post-launch we maintain the Fastlane release pipeline and use over-the-air updates to push eligible fixes quickly while scheduling native updates around store review windows.
Outcomes you can count on.
Concrete gains Mobile App Development delivers for your operations, measured in hours saved, errors removed, and cost avoided, not vague promises. Each outcome below maps to a specific capability you can trace end-to-end, so the impact is visible from day one.
One codebase, two stores, native feel
With React Native or Flutter 3 we ship to iOS and Android from a shared codebase while keeping platform-correct navigation, gestures, and 60fps animations, so you avoid funding and maintaining two separate native teams unless a feature genuinely requires it.
Works on bad networks and offline
Apps are built offline-first: data is cached locally, writes are queued, and changes reconcile through Firebase or Supabase when connectivity returns, so commuters, field workers, and users on weak signal still get a working app instead of a spinner.
Monetization wired in correctly
We integrate in-app purchases and subscriptions through RevenueCat, which handles Apple and Google receipt validation, renewals, trials, and entitlement state across platforms, removing the most common source of rejected builds and revenue leakage.
Faster fixes after launch
Over-the-air updates (via Expo Updates for the JS layer) let us push many bug fixes and copy changes directly to installed apps within store policy limits, so urgent corrections do not wait days for a fresh App Store or Play review cycle.
