Home / Cross-Platform Mobile App Development

One product on iOS and Android when a shared codebase is the right fit

Cross-Platform Mobile App Development

Cross-platform mobile app development for teams that need both stores without two native codebases. We decide that after we know the UI and device features. Public portfolio is web; this work is scoped per engagement. India-based team, worldwide clients.

Talk About a Cross-Platform AppView Our Work
FastUI Labs cross-platform mobile app illustration
Cross-platform only

When we
recommend it

Not a Flutter/React Native billboard. A shared codebase is a trade-off.

Start this engagement

One codebase, two stores

When UI is standard and you need iOS and Android, a shared client can be cheaper than two native apps.

When native is better

Deep OS features, heavy performance, or platform-specific UX may need Android-only or iOS-only work instead.

Shared UI logic

Screens and business rules live once. Store-specific bits are called out in planning, not hidden.

API behind the app

The client still needs a backend. We can plan that API with the Node.js approach used on our web products.

Both store listings

Play Store and App Store each have rules. Dual submission is part of launch planning.

Mobile web as an alternative

If the job can be done in the browser, a responsive web app may be enough. We will say so.

Why FastUI Labs

Why FastUI Labs

Cross-platform as a recommendation, not a default.

01

No fake framework list

We do not list React Native, Flutter, Ionic, or Capacitor as shipped expertise. The toolkit is chosen after discovery.

02

Honest portfolio

Public work is web. We will not present it as a hybrid app.

03

Clear vs native pages

Need only Android or only iOS? Use those service pages. This one is for both stores from one client.

04

Same six-step process

Written v1, design, build, test, launch — no “half the time” guarantees.

05

Backend we have shipped

Accounts, payments, and data are problems we already solve on the web.

06

Worldwide clients

India-based team, English-language delivery.

Process

How we build hybrid apps

Platform choice happens in planning, not in a sales slogan.

  1. Discovery

    We learn whether both stores are required and how native the UX must feel.

  2. Planning

    We choose shared codebase vs two native apps vs mobile web, and lock v1.

  3. UI/UX Design

    We design flows that can work on both platforms without pretending they are identical.

  4. Development

    We build the shared client and API the scope includes.

  5. Testing & QA

    We check agreed flows on iOS and Android devices we have.

  6. Launch & Support

    We help with dual store submission and follow-on releases.

From kickoff to launch — one clear owner

Technologies we use

Modern tools we use to design, build, and ship reliable digital products.

React
Node.js
Git
FAQ

Frequently Asked
Questions

Straight answers about scope, process, timelines, and how we work with clients worldwide.

Those frameworks are not in our public case studies. If a shared codebase is the right fit, we choose the toolkit after discovery.
Not always. Store-specific features and QA on two OSes still cost time. We will not promise “half the budget”.
Yes. FastUI Labs is based in India and serves businesses worldwide.
Email hello@fastuilabs.com or use the contact form with both stores in mind and the jobs v1 must do.

Talk About a Cross-Platform App

Tell us why you need both stores. We'll help you decide shared codebase, two native apps, or a mobile web app. Or email hello@fastuilabs.com.

Start Your Project
WhatsAppCall Us