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Anviam Anviam

Anviam service

Mobile App Development

iOS, Android and cross-platform apps built around how people really use their phones: fast, offline-ready and polished enough to keep a place on the home screen.

6,000+ brands grown 5-star rated on Google & Clutch Measured on revenue, not clicks

Why Anviam for mobile app development

2 Stores

iOS and Android reached from one well-built cross-platform codebase

Offline

ready, so the app keeps working on patchy connections

Retention

lifted by native-feeling UX and reliable, fast performance

Recognised, certified and trusted

  • CMMI Level 3
    CMMI Level 3
  • ISO 9001:2015
    ISO 9001:2015
  • ISO 27001:2013
    ISO 27001:2013
  • Clutch Top IT Services
    Clutch Top IT Services
  • GoodFirms Recognised
    GoodFirms Recognised
  • AWS Advanced Tier
    AWS Advanced Tier
  • Upwork Top Rated
    Upwork Top Rated
  • HIPAA Compliant
    HIPAA Compliant
  • GDPR Compliant
    GDPR Compliant
  • CCPA Compliant
    CCPA Compliant
  • WCAG Compliant
    WCAG Compliant

What a mobile app that lasts needs

A successful app is four things done well together. Get the UX right but the release engineering wrong, or vice versa, and users feel it immediately.

Step 1

Platform-right UX

Interfaces that follow iOS and Android conventions so the app feels native and obvious to use.

Step 2

Offline & sync

Sensible offline behaviour and reliable data sync so the app works on patchy connections.

Step 3

Performance & battery

Fast, responsive screens that respect battery and data, because users punish apps that drain either.

Step 4

Release engineering

Store submission, versioning, crash reporting and safe updates so shipping is routine, not risky.

A mobile app only works if people keep it. Anviam builds iOS and Android apps, native where performance demands it and cross-platform with React Native or Flutter where it saves time and budget, designed around real mobile behaviour: used on the move, often offline, frequently one-handed, and always competing for space on a crowded home screen.

Mobile app development is a full discipline, not a port of your website. It covers platform conventions, offline sync, push notifications, battery and data use, store review rules and the release engineering that keeps updates safe. We handle the whole lifecycle so your app feels native, launches cleanly and can be improved for years.

Whether you need a customer-facing app, an internal tool for field teams, or a cross-platform product that has to reach everyone, we help you choose the right approach, build it well, and get it live on the App Store and Google Play.

Native iOS and Android development

When an app needs the best possible performance, deep hardware access or a truly platform-native feel, we build native: Swift for iOS and Kotlin for Android. Native gives you the smoothest animations, the fullest access to device features like camera, sensors and secure storage, and the closest fit to each platform's design language.

We follow Apple and Google design conventions rather than forcing one look onto both, because users expect an iPhone app to feel like an iPhone app. That attention is what separates an app people trust from one that feels like a wrapped website.

  • Swift development for iOS
  • Kotlin development for Android
  • Full device & hardware access
  • Platform-native UI patterns
  • Secure on-device storage
  • Deep OS and widget integration

Related: UI/UX design

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Cross-platform apps with React Native and Flutter

If you need to reach iOS and Android users without building and maintaining two separate codebases, cross-platform is often the smarter investment. We build with React Native and Flutter to share most of the code across both platforms, which cuts cost and keeps the two versions in step as you add features.

Cross-platform is not a compromise when it is done well. For most business apps, portals, marketplaces, booking and content apps, a well-built React Native or Flutter app is indistinguishable from native to users while costing meaningfully less to build and maintain.

  • React Native development
  • Flutter development
  • Single codebase, both platforms
  • Shared logic, platform-specific polish
  • Lower build & maintenance cost
  • Faster feature parity across stores

Related: Web app developmentMVP & new product development

Mobile UX designed for the thumb

Mobile UX has its own rules: reachable controls, forgiving touch targets, fast first load and flows that survive interruption. We design around how people actually hold and use phones, so core tasks are quick one-handed and the app never makes someone hunt for the obvious.

We prototype and test key journeys before building them, which catches confusing flows early when they are cheap to fix. The payoff is higher completion rates, better reviews and users who come back.

  • One-handed, reachable layouts
  • Fast first-load experience
  • Interruption-tolerant flows
  • Accessible touch targets & contrast
  • Clickable prototypes before build
  • Onboarding that earns retention

Related: UI/UX design

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Offline, notifications and integrations

Phones lose signal, so a good app keeps working. We build offline-first behaviour where it matters, queue actions and sync cleanly when the connection returns, so users are never blocked by a weak network. We also wire up push notifications and deep links to bring people back for the right reasons, not to annoy them.

Most apps also need to talk to other systems: your back end, payment providers, maps, analytics and more. We build the APIs and integrations that connect everything reliably, with in-app purchases and subscriptions set up to each store's rules.

  • Offline-first data & sync
  • Push notifications & deep links
  • In-app purchases & subscriptions
  • Payment & maps integrations
  • Analytics & event tracking
  • Back-end & API connectivity

Related: API development & integrations

App Store and Google Play launch

Getting an app live is its own skill. We handle store setup, metadata, screenshots, review guidelines, privacy declarations and the submission process, so your launch is not derailed by a rejected build. We test on real devices across screen sizes and OS versions before anything ships.

After launch, we watch crash reports and analytics, fix issues fast, and release updates safely with staged rollouts. Shipping becomes routine rather than a nerve-wracking event.

  • App Store & Google Play submission
  • Store listing & metadata
  • Real-device testing
  • Privacy & review compliance
  • Crash reporting & analytics
  • Staged rollout of updates

Related: Software maintenance & support

Who mobile app development is for

We build mobile apps for businesses that want a direct, on-device relationship with their customers, for startups whose product is the app, and for operations teams who need reliable tools for field and frontline staff. If your users live on their phones, an app that respects their time earns a place others lose.

We work across sectors, from fitness and retail to healthcare and fintech, adapting security, payments and compliance to each. The craft of a good mobile experience carries across all of them.

  • Consumer & customer-facing apps
  • Startup & product-led businesses
  • Field & frontline team tools
  • Booking, ordering & marketplace apps
  • Content & subscription apps
  • Regulated sectors needing secure apps

Related: Enterprise software development

Why mobile app quality matters

People decide fast and uninstall faster. A polished, platform-right app is what turns an install into a retained, valuable user.

2 Stores

iOS and Android reached from one well-built cross-platform codebase

Offline

ready, so the app keeps working on patchy connections

Retention

lifted by native-feeling UX and reliable, fast performance

Launch

handled end to end, from store setup to staged update rollout

How we build mobile apps

  1. 01

    Discovery & platform choice

    We define the app, the users and whether native or cross-platform is the right call.

  2. 02

    UX & prototype

    We design and test the core journeys so the flows are right before we build them.

  3. 03

    Build

    We develop the app in increments, with real-device testing throughout.

  4. 04

    Integrate & harden

    We wire up back ends, payments, notifications and offline sync, and secure it all.

  5. 05

    Launch

    We handle App Store and Google Play submission and a safe first release.

  6. 06

    Monitor & improve

    We track crashes and usage, fix fast, and ship updates on a steady cadence.

Frequently asked questions

Should I build native or cross-platform?

It depends on your app. Native (Swift and Kotlin) suits apps needing top performance, heavy hardware access or a deeply platform-specific feel. Cross-platform (React Native or Flutter) suits most business apps, reaching both platforms from one codebase at lower cost. We recommend the right call after understanding your app in discovery, with no bias toward either.

How much does a mobile app cost?

Cost tracks scope and whether you build native or cross-platform. We keep budgets sensible by scoping a strong first version rather than everything at once. After discovery you get a clear, fixed proposal with a realistic timeline and no hidden fees.

Can you build for both iOS and Android?

Yes. We build for both, either as separate native apps or, more commonly, as a single cross-platform codebase with React Native or Flutter that ships to the App Store and Google Play while sharing most of the code.

Do you handle the App Store and Google Play submission?

Yes. We set up store listings, metadata, screenshots and privacy declarations, make sure the build meets each store's review guidelines, and manage submission and release, so your launch is not delayed by a rejection.

Will the app work offline?

Where it matters, yes. We build offline-first behaviour so the app keeps working without signal, queues actions and syncs cleanly when the connection returns. How much offline capability you need is a design decision we agree up front.

Do I own the app and the code?

Yes. You get full source code and documentation, and the store, developer and infrastructure accounts are in your name. There is no lock-in, and any competent mobile team can continue the work.

Can you update or fix an existing app?

Yes. We take over apps built by others, starting with a review of the codebase, then maintain, fix and enhance them. Our software maintenance service covers this with agreed SLAs.

How do you keep the app working after launch?

We monitor crash reports and analytics, fix issues quickly, keep the app compatible with new OS versions, and roll out updates safely in stages. Mobile platforms change constantly, so ongoing maintenance is what keeps an app healthy.

Client stories

What clients say about working with us

“Anviam's team reads our business like insiders. The strategy document after week two was sharper than anything we got from the agency we replaced.”
HS Helena Samzadeh
“Rankings moved inside the first quarter. What I value more is the clarity of the monthly review, I know exactly where every pound went.”
SB Steven Brooks
“They told us the truth about what wasn't working before we had to ask. That's rare. Twelve months in, organic is now our largest acquisition channel.”
CC Chip Cooper
Read the case studies behind the reviews

Insights

Guides & insights

Field notes and guides on growth from the team shipping the work.

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