AVENTRA

Mobile App Development

Mobile apps your customers keep on their home screen.

We design and build iOS and Android apps with native-quality performance from a single codebase, then keep them healthy through every OS update and feature release.

  • A fixed-price proposal before any code
  • A working demo every two weeks
  • You own the code, designs and data
  • An NDA before you share anything sensitive

What we build

Mobile App Development, shaped to the job.

01

Customer apps

Accounts, payments, notifications and loyalty for brands that live on the phone.

02

Marketplaces and on-demand

Two-sided apps with real-time tracking, bookings, chat and payouts.

03

Booking and membership

Scheduling, subscriptions and member perks with calendar and payment sync.

04

Field and workforce apps

Offline-first tools for teams on the move: forms, photos, signatures, routes.

05

SaaS companion apps

The mobile side of your web platform, sharing its backend and design system.

06

Rebuilds and rescues

Modernising slow or unstable apps without losing users, reviews or data.

What you get

Results you can measure.

  1. 01

    One codebase, both stores

    Flutter or React Native gives you iOS and Android from a single team, so features ship to everyone at once.

  2. 02

    A launch without surprises

    We prepare store listings, privacy labels and review builds, and handle App Store and Google Play submission.

  3. 03

    Built for retention

    Push notifications, deep links, offline support and analytics are designed in, not bolted on.

  4. 04

    Hands-off updates

    Automated builds, over-the-air updates where the stores allow, and crash monitoring from day one.

How we deliver

Four steps, and a demo every two weeks.

Every step ends with something you can see and approve before the next begins.

1

Prototype

Clickable designs tested with real users before any code is written.

2

Build in sprints

A new TestFlight and Play build every two weeks for your team to try.

3

Launch

Store submission, release notes and a staged rollout to catch issues early.

4

Grow

Monitoring, OS-update support and a roadmap shaped by usage data.

Technology

The tools we reach for.

Chosen to fit the problem. These are the ones we use most for this kind of work.

  • FlutterMobile
  • DartLanguage
  • ExpoReact Native
  • ReactUI library
  • TypeScriptLanguage
  • FirebaseApp platform
  • SupabaseBackend platform
  • Node.jsRuntime
  • StripePayments
  • SentryMonitoring
  • PostHogAnalytics
  • GitHub ActionsCI/CD

FAQ

Questions about mobile app development.

Still unsure about something? Ask us

For most business apps, cross-platform with Flutter or React Native gives native-quality results at a lower cost of ownership, because one team maintains one codebase. We recommend fully native Swift and Kotlin only when an app depends heavily on platform-specific hardware or the newest OS features.

Both are production-proven. Flutter suits highly custom, brand-led interfaces; React Native suits teams that already work in React or want to share logic with a web app. We recommend one after discovery, based on your product, team and roadmap.

Yes. We prepare listings, screenshots, privacy disclosures and review notes, submit the builds and handle any reviewer feedback. The developer accounts stay in your company's name.

On a support plan we test against beta releases, update dependencies and ship compatibility fixes, so your app keeps working when your users update their phones.

Further reading

Decision guides for this kind of project.

Start a project

Tell us about your app idea.

No obligation. The first call is a working session about your goals, not a sales pitch, and you'll hear back within one business day.

  1. 01Share your goalsA short form or a call. No preparation needed.
  2. 02Get a fixed-price proposalScope, timeline and cost in writing.
  3. 03Start buildingA working demo within the first two weeks.