Scrumfort

Innovate with Certainty

Service

Mobile App Development

Mobile Apps for iOS and Android, Built Once

Cross-platform mobile app development means building one application that runs on both iOS and Android from a single shared codebase, instead of building and maintaining two.

What you get

Apps live on the App Store and Google Play
Full source code in your own repository, owned by you
Interface design for both platforms, respecting each one's conventions
Backend and API work where the app needs it
Store listings prepared, submitted, and taken all the way through review
Technical documentation and a recorded handover session

How We Build It

Why We Build With Flutter
01

Why We Build With Flutter

One codebase for both platforms cuts the build cost, and cuts the cost of every change you make for the next five years by more. Performance is close enough to native that for the large majority of business apps your users will not notice a difference. The real benefit is not technical: when you ask for a change, it gets made once and appears on both platforms in the same release.

Backend and API Architecture
02

Backend and API Architecture

Most apps need a backend. We build these in Node.js, or connect to whatever you already run. Documented APIs, so the app and any future web product share one source of truth rather than drifting apart over two years.

Offline Support and Sync
03

Offline Support and Sync

If your users work in warehouses, vehicles, basements or anywhere with poor signal, the app has to function offline and reconcile cleanly when the connection returns. Decide this early. Retrofitting it later is substantially more work than building it in.

How we build

01

Discovery and Scoping

One to two weeks

What the app must do, who uses it and in what conditions, and what belongs in release one.

02

Design

Two weeks

Interface design for the core screens, following iOS and Android conventions where they genuinely differ rather than forcing one layout onto both.

03

Build

Six to eight weeks

Two-week cycles.

04

Test and QA

Two weeks

Real devices and real OS versions, not only simulators.

05

Submission, Launch and Handover

One to two weeks

Store listings, screenshots, privacy declarations, submission and review, including any rejections.

Pricing

Starts at

$12,000

Fixed price, fixed scope.

Want your exact number? The estimator gets you there in a minute.

Why Scrumfort

01

Fixed price

Agreed before we start.

02

You own the code

Full source, your repo.

03

One team

Scope to ship, same people.

04

Support after launch

We don't disappear at go-live.

The stack we use

React Native
Flutter
Swift
Kotlin
TypeScript
Node.js
PostgreSQL
Firebase

Mobile App Development FAQ

From $12,000 for one platform connecting to an existing backend, and from $15,000 for both stores. Most projects land between $15,000 and $35,000. Under the launch offer until 31 October, all figures are 35% lower. You get a firm fixed price after discovery rather than a range that keeps moving.

Ten to fourteen weeks for most apps, from first call to live on both stores. Add one to two weeks for store review, which is outside anyone's control. If you have a fixed launch date, say so at the start and we will tell you honestly whether it is achievable.

Both are capable and both are widely used. We build in Flutter because our team is deep in it, which matters more to your outcome than a marginal technical comparison. Flutter tends to render more consistently across devices; React Native has a larger JavaScript ecosystem. If you already have a React Native codebase and people who know it, keeping it is usually the better decision, and we will say so rather than sell you a rewrite.

For most business apps, no. One codebase covers both, and the saving compounds because every future update is built once. Separate native apps earn their cost when you need heavy graphics performance, deep hardware integration, or when you already have in-house teams on each platform.

You do. Apps go out under your own Apple and Google developer accounts, so listings, reviews, analytics and the store relationship belong to you. We do the submission work inside your accounts. If you do not have the accounts yet, we walk you through setting them up during the build.

We handle it, inside the project. Rejections are routine and usually come down to metadata, privacy declarations, account deletion rules or in-app purchase policy rather than the app itself. We read the note, make the change, respond and resubmit. Your timeline may move by a few days. Your cost does not.

Yes, and it should if your users are anywhere with unreliable signal. Offline storage with sync and conflict handling when the connection returns. Raise it at scoping, because building it in is far cheaper than adding it after launch.

Either. If you have a backend, we connect to it and document the API contract. If you do not, we build one in Node.js. If a web product is also on your roadmap, tell us now and we will design the API to serve both.

Listing copy, screenshots and metadata are part of submission and included. Ongoing store optimisation, keyword testing and creative iteration is marketing work rather than development, and we do not do it. We will tell you what a specialist would charge so you can budget for it separately.

Thirty days included after launch. After that, from $900 a month covering OS compatibility updates, dependency and security patching, bug fixes and an allowance of small feature work. Worth knowing before you budget: mobile apps need maintenance even if you change nothing. Apple and Google both ship annual OS updates and periodically change store requirements. An app left untouched for two years will usually break or be removed.

Usually. We start with a paid codebase review at $1,500, and tell you honestly whether the existing code is worth continuing with or whether a rebuild costs less over two years. Sometimes the answer is rebuild, and we will say so plainly.

Ready to start?

Thirty minutes, no charge. Leave with a real cost range, a timeline, and a straight answer.