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Mobile App Development Services

One codebase, both stores — native where it counts.

A mobile app development company that ships to both stores from shared code, then drops to native where the experience demands it. Custom mobile app development covering iOS app development and Android app development together — wireframe to store listing, and healthy long after launch. We have built our own calling, dialpad and messaging layers, so the hard parts are not theoretical for us.

Bello Cloud Solutions — Mobile App Development Services
iOS + Android
One codebase
StackReact NativeKotlin MultiplatformSwiftKotlinNative modules
8+Products live in production
iOS · Android · WebShipped end-to-end
120+Projects built
Design → DeployOne senior crew
What we build

What mobile app development looks like, up close

A polished, native-feeling app — smooth navigation, real device features, and a build that's ready for the store on day one.

What you get

Everything mobile app development takes, handled.

One codebase

React Native / Kotlin Multiplatform to iOS and Android together.

Native where it counts

Our own call, dialpad and messaging modules when it must feel native.

Store-ready

Signing, review compliance and store listings handled.

Healthy after launch

Crash analytics and over-the-air updates baked in.

In detail

Mobile App Development Services, in plain terms

01

One codebase, both stores

Cross-platform app development in React Native app development and Kotlin Multiplatform means features land on iOS and Android together rather than one platform trailing the other by a sprint. When something has to feel truly native — telephony, camera, background audio — we write the module properly in Swift or Kotlin. That is React Native module development we do ourselves rather than hoping a package exists.

02

Native, hybrid or cross-platform — an honest recommendation

Native mobile app development, hybrid app development, Flutter app development and React Native all have a right answer depending on your team and your roadmap. We will tell you which one fits, including when the answer is Swift app development or Kotlin app development on each platform separately. We would rather lose the bigger quote than sell you the wrong architecture.

03

From MVP to enterprise

MVP app development and app prototype development when you need something real in front of users fast, and enterprise mobile app development when it has to pass a security review. Mobile app development for startups is a lot of what we do — build the smallest honest version, get it in front of people, then invest in scalable mobile app development once you know what actually gets used.

04

The features that take the time

Mobile app UI/UX design, mobile app backend development, mobile app API integration, push notification integration, in-app payment integration, offline-first app development, real-time chat app development and video calling app development. Secure mobile app development runs through all of it — proper token handling, no secrets in the bundle, storage encrypted where it matters.

05

Apps we have shipped, by sector

Ecommerce app development, fintech app development, healthcare app development, on-demand app development, social media app development, booking app development and delivery app development. Our own work spans an educator marketplace, a hyperlocal services marketplace, an emergency-safety app and a full calling and messaging product.

06

Getting it live, and keeping it healthy

App store deployment services and Google Play deployment services including signing, review compliance and store listings, plus app store optimization support for the listing itself. After launch: crash analytics, over-the-air updates, app performance optimization and mobile app maintenance and support. If you have an app that stalled, our mobile app rescue and audit or app modernization services will tell you what is salvageable before anyone commits to a rewrite.

07

How the engagement works

Fixed-price app development against a scoped plan by default. You can also hire mobile app developers from us directly — hire React Native developer, hire iOS developer or hire Android developer talent as a dedicated app development team — or bring us in as an app development consultant for architecture review. We work with clients worldwide, and as an app development company USA time zones are covered.

How we approach it

Our way of working

01

Cross-platform apps in React Native and Kotlin Multiplatform — one team, both stores.

02

Native modules when it matters: our own call UI, dialpad and messaging.

03

From wireframe to store listing — and healthy long after launch.

04

Crash analytics, OTA updates and store compliance handled.

Everything we cover

Mobile App Development Services — the full list

The whole practice, in one place. If what you need is on this list, we have shipped it before — and if it is not, ask anyway, and we will tell you honestly whether it is ours to take.

Custom builds

  • mobile app development services
  • mobile app development company
  • app development agency
  • custom mobile app development
  • mobile app development for startups
  • MVP app development
  • enterprise mobile app development
  • app prototype development
  • scalable mobile app development
  • secure mobile app development

Platforms and frameworks

  • iOS app development
  • Android app development
  • cross-platform app development
  • React Native app development
  • Swift app development
  • Kotlin app development
  • Flutter app development
  • native mobile app development
  • hybrid app development
  • React Native module development

Features we build in

  • mobile app UI/UX design
  • mobile app backend development
  • push notification integration
  • in-app payment integration
  • mobile app API integration
  • offline-first app development
  • real-time chat app development
  • video calling app development

Apps by industry

  • ecommerce app development
  • fintech app development
  • healthcare app development
  • on-demand app development
  • social media app development
  • booking app development
  • delivery app development

Launch and aftercare

  • app store deployment services
  • Google Play deployment services
  • app store optimization support
  • mobile app maintenance and support
  • app performance optimization
  • app modernization services
  • mobile app rescue and audit

Ways to work with us

  • hire mobile app developers
  • hire React Native developer
  • hire iOS developer
  • hire Android developer
  • dedicated app development team
  • fixed-price app development
  • app development consultant
  • app development company USA
Selected work

What we've shipped

See all projects →
Social Media App (Preact)

Social Media App (Preact)

A full social platform in Preact — feed, short-form video, in-app video calling and a live API.

Help QRHelp QR — screenshot

Help QR

A free emergency-safety app that puts an emergency QR on your lock screen — scanned, it calls your family instantly.

NSWNSW — screenshot

NSW

A native Android app in React Native — auth, home feed and a live API, running as an in-browser emulator demo.

DayflowDayflow — screenshot

Dayflow

A React Native task and daily-planning app with a Django REST back end — running as an in-browser emulator demo.

Social App (Android)Social App (Android) — screenshot

Social App (Android)

A native Android social app in Jetpack Compose — Hilt, Media3/ExoPlayer video and FFmpeg editing — as an in-browser emulator demo.

AntoilerAntoiler — screenshot

Antoiler

A hyperlocal home-services marketplace — hire verified nearby professionals within 5 km, with provider dashboards and reviews.

Keywix ConnectoKeywix Connecto — screenshot

Keywix Connecto

A cross-platform calling and messaging app built end-to-end in React Native and KMP, on our own native modules.

Good questions

Mobile App Development Services FAQs

How much does it cost to build a mobile app?

An MVP with authentication, a core flow and a backend usually starts in the mid five figures; a marketplace or a product with calling, payments and real-time features costs more. You get a fixed, milestone-based number after discovery, not an hourly meter.

React Native or native — which should we choose?

React Native or Kotlin Multiplatform for most products, because one team ships both platforms and features stay in sync. Go native when the app lives or dies on platform-specific hardware or OS integration. We make the call with you rather than defaulting to whatever we prefer.

Can you take over an app another agency built?

Yes, and it is a large part of our work. We audit the codebase and the release pipeline first and tell you honestly whether to continue it, refactor it or replace it. An automatic rewrite is usually the expensive answer, not the right one.

Do you handle App Store and Google Play submission?

Yes — certificates, signing, review compliance, store listings and screenshots. Rejections happen to everyone; we handle the back and forth so it does not land on your desk.

How long until we have something in the stores?

A focused MVP is typically eight to fourteen weeks including review time. We put builds on your device from the first sprint, so you are never waiting until the end to see it.

What happens after launch?

Crash monitoring, OS-version upgrades and store policy changes do not stop, so most clients keep a light maintenance retainer. Others take the source and run it in-house — you own everything either way.

Related

Often needed alongside this

Ready to start?

Need mobile app development?

Tell us what you're trying to ship. We'll come back with an honest, costed plan — no jargon.

Book a call