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BACK TO SERVICES MOBILE APP DEVELOPMENT

Mobile AppDevelopment

XERXES EngineeringiOS and Android Typical timeline • 8–16 weeks
A phone screen built from app panels, with iOS and Android marks

An app is not a website in a smaller window. It
lives on a device the person already relies on, it
has to work on a bad connection, and it gets
judged in the first thirty seconds against every
other app on that home screen. That bar is
higher than most briefs assume.

We build with React Native where one codebase
serves both platforms well, and native Android in
Kotlin where the work genuinely needs it. The
choice is made per project, not per habit.

An app earns its place on the
home screen in the first thirty
seconds. Everything after that
is keeping the promise.

Store submission is part of the job rather than
something handed back to you at the end. We
handle the review process, the rejections and the
release notes.

After launch the work does not stop, because the
platforms do not stop. Every OS release brings
deprecations, and we keep the app current rather
than letting it drift until it breaks.

GET STARTED

Ready when you are.

Tell us what the app needs to do and
we’ll scope it on a call — no obligation.

Book a Discovery Call

Service Mapping

  • React Native
    cross-platform

  • Native Android
    in Kotlin

  • iOS and Android
    store releases

  • Offline and poor
    connection handling

  • Push notifications
    and deep links

  • In-app payments
    and subscriptions

  • Maps, camera and
    device hardware

  • API and backend
    integration

  • Crash reporting
    and analytics

  • Ongoing OS and
    SDK maintenance

BENEFITS

Why ChooseOur Solution

Built for the device, the
network and the store
review that follows.

  • Real devices

    Not only a simulator. Older
    Androids, small screens and the
    two-year-old phone your customer
    actually owns.

  • Built for a bad
    connection

    Offline states, retries and queued
    actions are designed in from the
    start, because the app will be
    opened on a train and in a
    warehouse, not only on office
    wifi with full bars.

  • Crashes you can see

    Crash reporting, analytics and
    deep links are configured before
    launch, so you find the first bad
    release yourself instead of
    hearing about it in a review.

  • The listings
    stay yours

    Developer accounts in your own
    name with us added as developers.
    If we part ways you keep the app,
    the reviews and the download
    history.

  • Wired to back office

    Orders, stock, customers and
    pricing come from the system
    that owns them, through the same
    integration layer we build for
    everyone else.

  • Built by a team that
    stays

    Our developers have worked
    together since 2020. The person
    who wrote the sync logic is the
    one who fixes it two years later,
    which is why our apps do not need
    rewriting as often as they could.

WHAT’S INCLUDED

  • Build, store submission and release

  • React Native or native Kotlin,
    chosen per project

  • Offline handling and retries
    designed in from the start

  • Crash and usage data flowing to
    an account you can log into

  • Maintenance as iOS and
    Android move underneath

OUR PROCESS

How wework

From first build to store release and the versions after.

  1. 01

    Scope

    We agree the platforms, the features and the first release.

  2. 02

    Prototype

    Screens and flows you can tap through before we build them.

  3. 03

    Build

    Sprints on a device you hold, not a slide deck.

  4. 04

    Release

    Store submission, review and a staged rollout we manage.

  5. 05

    Maintain

    Updates as the platforms change, and the features after v1.