Mobile app development company for iOS and Android, from prototype to the app stores.

Native in Swift and Kotlin or cross-platform in React Native and Flutter, scoped in two weeks and released to the App Store and Google Play. The mobile banking app we rebuilt for Corva Bank in 16 weeks has 1.2M users.

1.2M
users on the Corva Bank app we rebuilt
16 wk
Corva Bank rebuild, 2020
2 wk
scoping, for a fixed $5,000
10+
years shipping interfaces, since 2016
A computer screen with a bunch of code on it
Swift, Kotlin, React Native or Flutter, in a repository you own from the first commit.

Eazetech is an AI content studio, and the people behind it have shipped interfaces since 2016. Mobile apps are part of that decade of work. The same attention that makes an ad stop someone mid-scroll is what makes an app get opened a second time: a first screen that makes sense, and nothing in the way of the thing the person came to do.

We build iOS and Android apps from a first prototype to a release in both stores, and keep them running afterwards. It is offered by the same team as our AI work and fits best alongside it: an app that needs an assistant inside it, or a launch whose ads and social content we are already making.

Native or cross-platform, decided before the budget

The most expensive mistake in mobile is choosing the stack for the wrong reason. We make the call in scoping, against what your app has to do, and write down why.

ApproachRight whenWhat it costs you
React NativeYour team works in TypeScript and React, or a web product can share logic with the appOne codebase for both stores, native modules for the hardware
FlutterThe interface is heavily custom and must look identical on both platformsOne codebase, in Dart rather than a language your web team uses
Swift (iOS)Camera, background location, Bluetooth, widgets or watch apps are the productA second codebase if you also need Android
Kotlin (Android)The same on Android, or a market where Android comes firstA second codebase if you also need iOS

React Native and Flutter development covers most business and consumer apps. Native earns its extra cost when the app lives on the phone’s hardware, or when it has to feel instant on older devices. If you already have an app in production, the answer is usually to keep its stack and fix whatever is slowing it down.

iOS and Android app development, from prototype to the stores

A prototype is a working app on real phones, installed through TestFlight and Google Play’s testing tracks, built to answer one question: will people use this? It uses real data where that matters and stands in for it where it does not.

Production is the version that survives real users: offline behaviour, state that holds after a cold start, push notifications people do not switch off, analytics, crash reporting and accessibility on both platforms.

Release is its own piece of work: signing, store listings, Apple’s privacy labels and Google’s Data safety form, answering reviewer questions, and staged rollouts so a bad build reaches a small share of users first.

Then the maintenance. Apple and Google each ship a major OS release every year and Google Play keeps raising its target version requirement, so an untouched app decays. We keep it current as an ongoing team, or hand it over with the documentation your own developers need.

AI features inside the app

This is where the mobile work meets the rest of the studio. An assistant that answers from your own help content or catalogue. Search that understands what someone meant rather than what they typed. A camera feature that reads a label, or a voice note turned into a filled-in form. The model work comes from the team behind our AI agents and development service, with its evaluation, guardrails and cost controls.

The first decision is where the model runs. On the phone, through Core ML on iOS and ML Kit on Android, data never leaves the device and there is no per-use fee, but the models are smaller. On a server, through an LLM behind your own backend, they are far more capable, every call has a cost, and what you send needs a privacy decision. We price the running cost per user before the build, not after the first invoice.

Mobile work that shipped

All work

Corva Bank is the reference: a rebuilt mobile banking app with 1.2M users, delivered in a 16-week engagement in 2020. Beside it, Bastion Health is AI development rather than mobile, a care-planning MVP launched in eight weeks in 2026, and shows the model side of the team this page draws on.

How a mobile build runs

01 · weeks 1–2

Scoping

Users, platforms, integrations and the native or cross-platform decision, written down with a fixed estimate.

02 · prototype

On real phones

A working app in TestFlight and Google Play testing, in front of real users before the production budget is spent.

03 · production

Build and release

Demos on real devices every other week, then signing, store review and a staged rollout to both stores.

04 · after launch

Keep it current

OS updates, store requirements, fixes and new features as an ongoing team, or a documented handover.

What it costs

Scoping
$5,000

Two weeks. The platform decision, a written scope and a fixed estimate for the build.

Prototype
$15,000 to $40,000

A working app on real phones, built to test the idea with users before the production budget is spent.

Production app
$40,000 to $150,000

Release-ready in the App Store and Google Play, with backend integration, analytics, crash reporting and accessibility.

Ongoing team
From $12,000 a month

Updates for each OS release, store requirements, fixes and new features after launch.

What moves a build within its range: whether the backend exists already, how much has to work offline, which third parties the app talks to, and whether it ships on one platform or two. AI features follow the same ladder, and a narrow AI MVP starts at $15,000. How we price.

Pairs with AI content

An app launch needs content as much as code: store preview videos, launch ads and a social calendar for the weeks after release. That content is what the studio leads with, and because it is made in the same studio as the app, the screens in the ads match the screens in the store.

Common questions

Scoping is $5,000 and takes two weeks. A prototype runs $15,000 to $40,000, a production app $40,000 to $150,000, and an ongoing team after launch from $12,000 a month. The estimate for the build is fixed in writing at the end of scoping.

Related

Have an app to build, rebuild or rescue?

Two weeks of scoping for $5,000 gets you the platform decision, a written scope and a fixed estimate. Alex Novak, delivery director, replies within one business day.

Get an estimate