mobile development
mobile apps that earn their place on the home screen
One React Native codebase, both stores, and an app that feels native on each. We build the mobile product, the API behind it and the release process that keeps shipping it, then hand you something you can keep running.
what you get
one codebase, two platforms
React Native across iOS and Android. One team, one set of tests, one bug fixed once. Two years of maintenance is where a split codebase quietly doubles the bill.
the API behind the app
Most mobile work is back-end work wearing a phone. We build the services, the data model and the sync the app depends on, rather than waiting on somebody else's endpoint.
talking to what you already run
Twinner's buying experience had to integrate fully with a legacy website that is not modern by any standard, and stay fast while doing it. That is usually the real job.
getting it into the stores
Builds, signing, store submissions, review responses and versioning. The release process is set up once and documented, so your next version does not need us.
a senior engineer on every line
Coding agents scaffold, refactor and write tests from day one. A senior engineer reads, reviews and owns everything that reaches your repository.
the stack
The stack is chosen for the product, not the other way round. This is what we reach for first.
- React Native
- TypeScript
- React
- Node.js
- GraphQL
- Apollo
mobile work we can point at
A buying experience that had to work on a phone, against a legacy system that was never designed for one.
questions we get asked
- React Native or fully native?
- React Native for almost everything we take on: one codebase covers both stores and keeps the second year of maintenance from costing twice. If your product genuinely needs platform-specific work, we say so during scoping rather than after you have paid for the wrong thing.
- Can you build the back end as well?
- Yes, and we usually do. Node, TypeScript and GraphQL behind the app, on a data model designed for the thing you are actually building. An app is only as good as what it is talking to.
- How quickly can we have something in our hands?
- An MVP takes about four weeks and lands under $10K. That is a real build you can put in front of users and investors, not a clickable prototype.
- Do you handle App Store and Play Store submission?
- Yes. Builds, signing, listings, review responses and the versioning process behind them. It is set up under your accounts, so the app stays yours if we part ways.
- Can you take over an app someone else built?
- Yes. A good share of our work has been picking up software written by other people and making it fast, current and extendable. We will read the codebase and tell you honestly whether it is worth continuing or worth replacing.