React Native · Expo · TypeScript

A React Native development agency built for startup speed.

iOS and Android from one codebase, one senior team, one budget. We take products from idea to the App Store and Google Play in weeks — TypeScript end to end, with full-time overlap with your US or UK workday.

Start your app → Common questions
One codebase — iOS + Android US & UK hours — real-time collaboration Billed in USD — card or ACH NDA first — your IP from day one
What we build

From MVP to the app your company runs on.

Startup MVPs

A shippable first version in weeks, not months — scoped ruthlessly so you can put it in front of users and investors fast.

Full consumer apps

Marketplaces, social, health, and content apps — smooth 60fps UI, offline support, push, analytics, payments.

B2B & internal apps

Field tools, dashboards, and workflow apps your team actually uses — secure auth, role-based access, integrations.

App + web, shared code

React Native for mobile, React/Next.js for web — one TypeScript monorepo, shared logic, one team for everything.

Rescues & takeovers

Inherited a troubled React Native codebase? We audit, stabilize, upgrade, and get releases shipping again.

Native modules when needed

Bluetooth, background tasks, camera pipelines, widgets — written in Swift and Kotlin, wrapped cleanly for RN.

Why React Native

Two platforms. One team. Half the budget.

platforms from one codebase
~50%
cost vs. two native teams
OTA
updates in minutes, not reviews
100%
TypeScript, app to API

React Native isn't always the answer — heavy 3D, AR, or hard real-time work belongs in native code. We build native apps too, so you'll get a straight answer, not a sales pitch.

Our stack

Boring, proven, fast to ship.

The stack we reach for by default — swapped only when your product genuinely needs something else.

React Native Expo + EAS TypeScript Next.js (web) Swift / Kotlin modules Supabase / Postgres Stripe & RevenueCat Push & deep links Detox / Jest testing CI/CD — EAS & Fastlane
How it works

Scoped in days, in TestFlight in weeks.

01

Scoping call

30 minutes. We map the product, cut it to a shippable core, and flag the RN-vs-native question honestly.

02

Fixed quote in 48h

A written scope with a fixed price in USD. No hourly meter, no surprises.

03

Weekly builds

A new build in TestFlight and Play internal testing every week — your feedback goes straight into the next one.

04

Launch & support

Store review handled end to end, CI/CD in place, OTA updates live — plus post-launch support.

Clients

People we've shipped for.

★★★★★

"Marino's reliability and flexibility made him a valuable asset to our team, and his keen attention to detail greatly contributed to the quality of our project. I wholeheartedly recommend him."

Gerrit Gruesgen
Head of Development, Game Lounge
★★★★★

"Marino is honest, easy to work with, and a real benefit to any team — equally strong working independently or collaboratively. A delight to work with, and I wouldn't hesitate to hire him again."

Marija Ziterbart
CTO, The Lowdown · Founder, Tilde Loop

We also ship software under our own brand — seven native Mac apps you can download today. That's the engineering bar your app gets.

Why Co Digit

Senior EU engineering, on your clock.

We work your hours
Full-time overlap with the US East Coast day (8:00–16:00 ET) and UK hours. Standups, Slack, and reviews in real time.
European rates
The technical depth of a top agency at a fraction of US agency pricing. Billed in USD, card or ACH.
Direct line to the engineer
You talk to the person writing the TypeScript — no project-manager telephone game.
NDA standard
Signed before the first call. Your code and IP are yours from the first commit.
FAQ

Questions founders ask us.

React Native or fully native — which should my startup choose?

For most startup products — marketplaces, social, SaaS companions, B2B tools — React Native ships iOS and Android from one codebase with one team, at roughly the cost of a single native app. If your product leans on heavy 3D, AR, or extreme performance, native is the better call — we build native too, and we'll tell you honestly on the first call.

Do you use Expo or bare React Native?

Expo with EAS builds by default — faster iteration, over-the-air updates, painless upgrades. When a project needs custom native modules beyond Expo's scope, we write them in Swift and Kotlin and run a bare workflow. We choose per project, not by habit.

Can you take over an existing React Native codebase?

Yes. Rescues are a regular part of our work: we audit the codebase first — architecture, dependencies, upgrade path, performance — give you a written report with a fixed quote, and stabilize before building new features.

Do you handle App Store and Google Play submission?

End to end: certificates and signing, TestFlight and internal testing tracks, store listings, the review back-and-forth, and CI/CD so every release after launch is one command.

What time zone do you work in?

We're based in Zagreb, Croatia (CET), and work a schedule with full-time overlap with the US East Coast working day (8:00–16:00 ET) and UK business hours — real-time standups and code review, not next-day email.

How does pricing work?

A 30-minute scoping call, then a fixed quote within 48 hours. Billed in USD by card or US bank transfer (ACH). You own the code from the first commit, and we sign your NDA before the first call.

Have an app in mind?

Tell us what it should do. You'll get a reply from the engineer who'd build it — within one business day, in your time zone.

Start your app →