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Code Colonies

Technologies

Mobile apps

In India most of your customers, field staff and delivery partners will meet your business through a phone, often a budget Android one on patchy data. We build cross platform apps in React Native or Flutter so one team ships to both stores, and drop into Kotlin or Swift for camera, Bluetooth, payments and other device features.

Close view of a person tapping through an app on a smartphone

3 tools

Cross platform

React Native

Apps that share logic and developers with a React web product.

Flutter

Apps with custom interfaces that must look the same on every device.

Expo

Faster React Native builds, over the air updates and store releases.

3 tools

Platforms and services

Android

Testing across low and mid range devices, offline storage and background sync.

iOS

App Store builds, push notifications and Apple sign in.

Firebase

Push notifications, crash reports and simple analytics for apps.

What we build with it

Typical work in this stack

Field and sales apps
Visit logs, order booking, photos with location and offline forms that sync when the signal returns.
Customer apps
Ordering, bookings, loyalty points and UPI payments, with notifications people actually want.
Delivery and driver apps
Route lists, proof of delivery with photo and signature, and cash collection records.
Inspection and audit apps
Checklists with photos, barcode or QR scans and reports generated on the spot.
Companion apps for web systems
A focused phone app for the five tasks people do away from their desk, backed by your existing system.

How we choose

Most business apps do not need two separate native codebases. If you already have a React web app, React Native lets the same team share code and types. If the app has a highly custom look or heavy animation, Flutter is often the better fit. We go fully native only when the app depends on device features that cross platform tools handle poorly, such as continuous Bluetooth links to hardware. Before choosing, we check whether a mobile friendly web app would do the job, because it avoids store reviews and update delays.

Questions

Good to know

Other parts of the stack

Will the app work without internet?

Yes, where it matters. Field apps store records on the phone and sync when a connection is available, with clear status for the user.

Do you publish to the Play Store and App Store?

Yes. We handle store listings, signing and review, under your developer accounts so you own the apps.

Do we need an app at all?

Not always. For occasional use a mobile web app or a WhatsApp flow is often simpler and cheaper, and we will say so.

Start a conversation

Tell us what you are trying to build.

Share the problem in a short call. You leave with a clear view of the approach, the team and the cost.

Or get a ballpark proposal in two minutes

A specialist replies within one working day. The first conversation is free.

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