Mobile app development

iOS and Android app development from one codebase

We build mobile apps for iOS and Android with React Native, sharing the backend and the domain model with your web product instead of duplicating them. From the first design to App Store and Google Play release — and support after launch.

  • Typical budget$24k – $55k+
  • Typical timeline6 – 12 weeks
  • PlatformsiOS & Android
  • StackReact Native, Node.js

Scope

What we build for mobile

Apps that are part of a working system — not a standalone screen set.

01

Customer apps

Booking, ordering, accounts and payments for your customers on iOS and Android.

02

Field & crew apps

Companion apps for teams on site: jobs, photos, checklists, signatures, offline mode.

03

Companion apps for a web product

A mobile client sharing the same backend, users and data as your web app.

04

Push notifications

Reminders, status updates and alerts via push, SMS and email.

05

Maps & location

Addresses, routes and location-aware features.

06

Store release

App Store and Google Play submission, review handling and updates.

Related work

Systems like this we have built

Client names are withheld under confidentiality agreements. See all engagements →

Service & construction · United States

Field service CRM with call, accounting and marketplace integration

Lead intake, jobs, calls, estimates and invoices in one system, integrated with RingCentral, QuickBooks, Gmail, Google Calendar and Thumbtack, plus a companion mobile app for crews.

Mobile publishing · Europe

Operations bot and admin panel for app portfolio tracking

Automated collection of App Store and Google Play listing data, a Telegram bot as the daily interface, and an admin panel with roles and exports.

B2B sales · Europe

Sales CRM with a live pipeline board

A drag-and-drop pipeline with live updates across sessions, deal records with documents and activity history, and a documented API for reporting.

Delivery

How the project runs

The same four phases on every project. Only their length changes with scope.

1. Discovery · 1–2 weeks

Interviews with the people who will use the system, a map of the current process, a written specification and an estimate. The documents are yours even if you build elsewhere.

2. Architecture · 1–2 weeks

Data model, integrations, infrastructure and a milestone schedule. This is where the scope, price and launch date are fixed in writing.

3. Build · two-week iterations

A working demo every Friday and a staging environment you can open at any time. Changes in scope are priced and agreed before they are built.

4. Launch & support · ongoing

Deployment, handover, documentation and training, then a support arrangement sized to the business.

Pricing

How much does mobile app development cost?

Typical ranges for US clients at 2025–26 senior remote rates. The fixed price is agreed in writing after discovery.

Building iOS and Android from one React Native codebase typically costs far less than two native apps. Use the configurator to see a range for your scope.

Open the configurator
Mobile app (iOS + Android) with backend
$24,000 – $55,000+
Companion app for an existing web product
$18,000 – $42,000
Push, SMS and email notifications
+ $1,500 – $5,000
Payments and subscriptions
+ $3,000 – $7,500

FAQ

Questions we are asked most

Native or React Native?

For most business apps React Native gives near-native quality on both platforms from one codebase, at a much lower cost and with faster updates. We recommend native only when an app depends on heavy device-specific features.

How long does it take to build a mobile app?

A focused app with a backend usually takes 6–12 weeks, plus store review time before the public release.

Do you publish the app to the App Store and Google Play?

Yes. We prepare store listings, handle submission and review, and set up releases under your own developer accounts.

Can the mobile app share a backend with our website or CRM?

Yes — that is how we prefer to build. One backend and one data model serve the web product and the mobile app.

Contact

Talk to the people who will build it

Describe what you need and get an indicative budget and timeline in two minutes. We reply within one business day.