Companion apps for web products
A mobile app for a product whose customers already use the React web version.
React Native development
React Native development. For teams that know React.
iOS and Android apps written in TypeScript and React, sharing most of their code. A good choice when your web team already works in React.
Choosing React Native
A good fit when
- Your web product is in React, and the same developers will maintain the app.
- You need both stores, and the screens are mostly lists, forms and content.
- You want to ship small fixes quickly, with over-the-air updates where store rules allow.
Think again when
- The app is heavy on animation, graphics or custom drawing. Flutter or native code handles that better. See Flutter
- Nobody on your team knows React. The main advantage is gone, so compare the options afresh.
01 / What we build
What we build with React Native.
Content and commerce apps
Catalogues, feeds, checkout and account areas shared across both platforms.
Internal tools
Staff apps where delivery speed matters more than platform-specific polish.
Upgrades and takeovers
Moving older projects to the current architecture and replacing unmaintained packages.
02 / How it connects
What it connects to, and what to plan for.
Typical integrations
- REST and GraphQL APIs
- Expo
- Firebase
- Push notifications
- Payment gateways
- Native modules in Swift and Kotlin
Often scoped alongside
Plan for these
Third-party packages
Much of the ecosystem is maintained by volunteers. We check that each dependency is alive before relying on it.
Native work still happens
Some features need a native module. The team needs Swift and Kotlin skills, not only JavaScript.
Version upgrades
React Native upgrades can be awkward. Staying close to the current release keeps each one small.
Further reading
Guides that go deeper.
How Much Does It Cost to Build a Mobile App in 2026?
Mobile app development costs in 2026, broken down feature by feature — MVP to enterprise, native vs cross-platform, plus ongoing costs budgets often miss.
Read insightA little clarity
React Native questions, answered plainly.
How does a React Native project with NSDBytes run, from idea to launch?
We agree the first release, design the screens, and build in React Native with TypeScript, sharing test builds on both platforms as work progresses. Launch covers App Store and Google Play submission. Handover includes the code and store accounts, and bugs are fixed free for 30 days.
When is React Native the right choice, and when is it not?
It depends on the product and the team that will maintain it. React Native makes most sense when your web product is already React. Without that, we compare it with Flutter, which we use for our own product GMS, and recommend whichever suits the app’s interface and your developers.
Who owns the code when NSDBytes builds with React Native?
You own the code, designs and documentation made for you once the final invoice is paid. Store listings and any over-the-air update service are set up in accounts you control. React Native itself is open source under the MIT licence.
How should an early-stage React Native project be scoped and priced?
Agree a narrow first release and price that; first releases start from $5,000. Use what you learn to shape the next one. If your own React developers will join the work, a dedicated developer from $4,000 a month working inside your team is often the simplest model.
How does a product built with React Native grow from a first release to heavy use?
We keep business logic out of the components, type everything with TypeScript, and move heavy work to native modules or the server. The back end is designed to scale separately from the app. Nothing guarantees scale in advance, so we profile on mid-range phones as features are added.
Start wherever you are
Bring the React product that needs a mobile app.
Tell us what exists today and who will maintain the app. We will say whether React Native or another route fits before we quote.