Mobile App Development Services

Native and cross-platform apps your users trust

Start roadmapping your app with us, or furnish an existing app with new features. Our flexibility gives you wings.

A hand holding a phone showing a weather dashboard app, with a monitor and laptop behind
Native or cross platform? You choose.
Native iOS
Deliver seamless, high-performance apps built exclusively for Apple devices
Native Android
Create secure, reliable apps optimized for every Android environment.
Cross Platform
Build once, deploy everywhere with Flutter or React Native frameworks

Mobile app development for iOS, Android and cross-platform

ARITS is a mobile app development company that designs for the phone your user actually holds: mid-range hardware, patchy networks, interruptions everywhere. Our largest mobile deployment, OneFish, has onboarded more than 26,000 fish farmers across Bangladesh on exactly those conditions.

iOS and Android app development

iOS app development in Swift and Android builds in Kotlin, for products that demand platform depth: heavy media, background processing, tight hardware integration. You get apps that feel at home on each platform and pass store review without drama, because the platform rules were respected from the start.

Flutter app development

Flutter lets one codebase ship to both stores with near-native performance, which suits most business apps and MVPs. Our Flutter app development covers the full path: UI systems, state management, offline storage, store submission. One team, one codebase, both platforms on the same release day.

React Native app development

For teams already invested in JavaScript, React Native keeps your web and mobile stacks close enough to share people and logic. As a React Native app development company we handle the parts that trip teams up: native modules, performance profiling, and upgrade paths that do not stall the roadmap.

Built for the bad day

Apps get used on the move, offline, mid-interruption. We design for the worst session, with offline-first data, graceful sync and honest error states. OneFish works in rural areas where connectivity comes and goes, because that is where its users live.

From store launch to version ten

Shipping to the stores is the start, so the engagement covers analytics, crash monitoring, release management and the steady rhythm of updates that keeps an app healthy. When the platform vendors change the rules, as they do every year, your app is already ready.
Talk to our
expert engineers!

Discuss your project, requirements or tech stack questions!

expert engineers
expert engineers
expert engineers

Our expertise doesn’t just end at app development.

Analytics

Every app ships with analytics wired in from the first release: screen flows, funnels, retention, crashes. You learn what users actually do rather than what the roadmap assumed. The instrumentation is reviewed with you, so the numbers answer real product questions instead of piling up.

Security

Mobile security is handled at every layer we control: encrypted storage on the device, secure transport, token handling, and API hardening behind the app. For regulated work we build to HIPAA or GDPR requirements. Security review is part of delivery, included in the engagement.

Store submissions

We prepare and manage the App Store and Google Play submissions: listing assets, privacy declarations, review responses, staged rollouts. Store rejection is a solved problem when the requirements are designed in early, and we have taken enough apps through review to know where the traps are.

Payments

In-app purchases, subscriptions and payment-gateway integrations, built to pass both store policy and financial audit. We map out which purchases must go through the stores and which can go direct, so the fees you pay are a decision rather than a surprise.

Offline and low-bandwidth design

Connectivity is a spectrum, and a mobile app that assumes wifi will fail its users at the worst moment. We design local-first data storage and background sync, then test on throttled networks before release. It is why OneFish works in places where the signal does not.

Common questions about mobile app development

Should we build native, Flutter or React Native?

Flutter or React Native covers most business apps at a lower cost, since one codebase serves both stores. Go native in Swift and Kotlin when you need deep platform features, heavy graphics or maximum performance. We recommend after discovery, and we will tell you when the cheaper option is the right one.

How much does mobile app development cost?

The honest drivers are scope, platform choice and backend complexity. A single-purpose app costs far less than a marketplace with payments and live data. After a discovery call you get an estimate with the cost drivers broken out, so trimming scope is a decision you control.

How long does it take to launch an app?

A focused first release is typically a few months from kickoff to store approval. Complex products take longer and ship in stages. Store review adds days, and we build that into the plan rather than promising a date the review queue does not honour.

Do you maintain apps after launch?

Yes, and most clients stay for it. Operating systems change yearly, store policies more often, and an unmaintained app decays. We run monitoring, updates and releases for apps we built, and we take over apps built elsewhere after a technical review.

Talk to the engineers who would do the work

A 45 minute call, no pitch deck. Bring your constraints and we will tell you what is realistic, from a team that has shipped 400+ projects out of Dhaka and London.

Prefer to write first? Send us the details.

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