atm group
Services / Mobile Apps

Mobile apps that ship and stay shipped.

Native iOS and Android, React Native cross-platform, or hybrid builds. We pick the right approach for the product and the team that has to maintain it. Real engineering, App Store and Play Store ready.

What we ship

Native iOS Apps

Swift and SwiftUI builds for the App Store. Native performance, native UX, native integrations.

Native Android Apps

Kotlin and Jetpack Compose. Google Play Store ready, Material Design conventions, broad device support.

Cross-Platform with React Native

One codebase, two platforms. Right for product-led teams that want fast iteration across iOS and Android.

Backend & API Builds

The server side of the app: auth, data, push notifications, sync, payments, analytics. Often the harder half.

App Store Submission

We handle the submission process, screenshots, app descriptions, review responses. No surprises.

Existing App Rescue

Inherited a stuck or broken mobile codebase? We audit, stabilize, and get it shipping again.

How we work

Right tool for the product

Native when performance or platform integration demands it. React Native when iteration speed matters more. We're honest about the tradeoff.

Built to maintain

Clean architecture, documented dependencies, sensible patterns. Whoever maintains it next (you, us, someone else) inherits clean code.

App Store and Play Store ready

We design submissions to App Store and Play Store guidelines from day one, and most go through on first review.

Who this is for

  • Founders launching a mobile-first product
  • Web companies adding a mobile companion app
  • Internal teams building employee or operator apps
  • Brands launching consumer apps tied to a product or service
  • Anyone with a stuck or broken mobile codebase

Frequently asked questions

Native or React Native, which do I want?

Depends on the app. Heavy graphics, complex animations, platform-specific features (HealthKit, ARKit, deep Bluetooth): go native. Standard CRUD apps, content apps, MVPs: React Native is often the right call. We'll give you a real recommendation after scoping.

Do you also build the backend?

Yes. Most mobile apps need a backend (auth, sync, push, payments). We can build the full stack, or work with your existing backend team.

How long does a mobile app take?

MVP: 6 to 12 weeks. Production-ready app with backend: 3 to 6 months. Complex apps with native integrations: longer. We scope tightly so you're not surprised.

Do you handle App Store and Play Store submissions?

Yes. We prepare metadata, screenshots, and the app itself, then walk it through review. Most apps get approved on first submission.

What about ongoing updates after launch?

Most mobile apps need ongoing work for OS updates, bug fixes, and new features. We offer monthly retainers, or hand off cleanly if you have an in-house team.

Can you fix an app from another developer?

Often yes. We do a paid audit first to assess the codebase and give you an honest recommendation: fix in place, partial rewrite, or full rebuild.

Have something to build?

Tell us what you're working on. We'll come back with how we'd approach it, including whether we're the right fit.

Get in touch →