Technologies · Mobile

Mobile apps that ship to both stores from one codebase.

React Native and Expo apps — offline-first, push-enabled, and updated over the air. One codebase for iOS and Android, native performance where it counts, and a release pipeline that gets you into the app stores.

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NorthwindField · offline-ready
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▲ up to date
98%
Delivered
▲ on-time
This week +18%
Recent routes
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Why it matters

A mobile app is a promise to be there — even offline.

Your customers expect an app that opens instantly, works on a train with no signal, and updates itself. We build that as an engineering discipline, not an afterthought.

Most mobile projects stall on the same rocks: two separate codebases for iOS and Android that drift apart, an app that breaks the moment the network does, and a release process nobody documented. We build with React Native and Expo so a single codebase serves both platforms, drop to native Swift or Kotlin modules only where a feature truly needs it, and design offline-first from the first screen — a local store that syncs when the connection returns. Push notifications go out through APNs and FCM, and we ship fixes the same day using over-the-air updates through EAS Update, so you are not waiting on a store review for a typo. It is the same build discipline we run across our own fleet of 46 products.

1
codebase, both platforms
46
products built this way
19
live in production
135+
agents in the fleet
What we build

Cross-platform apps, engineered end to end.

One team, from the first screen to a signed build in the store — with the hard parts (offline, push, updates) built in from the start.

Cross-platform apps
one codebase, iOS + Android
React NativeExpoFlutter (alt)Shared componentsNative look & feel
Offline-first + sync
works with no signal
Local-first storeBackground syncConflict resolutionOptimistic UI
Push notifications
reach users anywhere
APNs (iOS)FCM (Android)Segmented sendsDeep links
Over-the-air updates
fix same-day, no store wait
EAS UpdateStaged rolloutInstant rollbackVersion channels
App-store release
into both stores, cleanly
App Store ConnectGoogle Play ConsoleSigning & certsStore listing prep
Native modules
when the platform demands it
Swift / Kotlin bridgesCamera & sensorsBiometricsBackground tasks
9:41Offline
Sync queue3 pending · will sync
Queued locally saved
1New delivery logQueued
2Photo attachedQueued
3Status updateQueued
Last synced 2m ago
HomeSyncYou

Offline-first, not offline-broken.

We design the data layer so the app is fully usable with no connection — actions queue locally and sync the moment the network returns, with conflicts resolved predictably.

  • A local-first store so screens render instantly, online or off
  • Background sync that reconciles when the connection returns
  • Optimistic UI — actions feel instant, confirm in the background
  • Deterministic conflict resolution so no edit is silently lost

Ship once, update over the air.

A native app still needs a release pipeline. We set up signing, store submission, and EAS Update channels so you can push a fix the same day — without waiting on a store review for small changes.

  • EAS Update for instant JavaScript-layer fixes and rollbacks
  • Staged rollout channels — internal, beta, then production
  • App Store Connect and Google Play submission handled for you
  • Signing keys and certificates managed and documented
Token-driven frontendNext.js · React
Design tokens
one source
Component library
shared
Pages
SSR / SSG
Light + dark
in sync
How it works

From design to both app stores.

A repeatable pipeline — design the app, build it cross-platform, package it with EAS, and release to the stores.

step
Design
flows & UI
step
Build
React Native / Expo
gate
QA gate
tested & hardened
step
EAS build
signed binaries
step
Store release
App Store + Play
Powered by our fleet

The real platforms behind this service.

This is delivered by our real mobile capability — the mobile-developer agent driving the CloviCode build engine, on the React Native and Expo stack we run across the fleet.

Mobile build
mobile-developer agent
React Native / ExpoOffline-first architectureNative module bridging
Engine
CloviCode build engine
Production-complete codeNo-stub quality gateTests + review
Delivery
EAS + store pipeline
OTA updatesSigning & certsApp Store + Play submission
Upfront about the store costs

The app-store accounts are yours, priced by the stores.

Publishing to the stores needs developer accounts you own directly — Apple’s Developer Program and Google Play’s registration. Those are the stores’ own fees, billed to you, not to us. We set the accounts up with you and handle everything technical around them.

FAQ

Questions we get asked

Yes. We build with React Native and Expo, so a single codebase produces native apps for both iOS and Android. We use native Swift or Kotlin modules only where a specific feature genuinely requires it, which keeps the app fast without maintaining two separate projects.
Yes — we build offline-first. The app uses a local store so screens render instantly whether you are online or off, and any actions you take queue locally and sync automatically when the connection returns, with conflicts resolved predictably.
For most changes, no. We use over-the-air updates through EAS Update, so JavaScript-layer fixes and improvements reach users the same day without a store review. Changes that touch native code still go through the normal store submission, which we handle for you.
The app-store developer accounts are yours and priced by the stores directly — Apple’s Developer Program is an annual fee and Google Play has a one-time registration fee. Those are billed to you by the stores, not by us. We set the accounts up with you and manage the entire technical release process.
Yes. We wire push notifications through APNs on iOS and FCM on Android, support segmented sends, and set up deep links so a notification opens the exact screen it refers to.
Our stack

The technology behind this.

The real, relevant stack we build this with — model-agnostic, open-source-first, production-grade.

Keep exploring

Related capabilities

Every technology below is delivered by the same composed engineering team.

Ready when you are

Have a mobile app in mind?

Tell us the app you want in your customers’ hands. We’ll build it cross-platform, offline-first, and ship it to both stores — end to end.

Start a project →