Quoryx.AI

iOS and Android apps built to be used every day

We design, build and publish mobile apps for iPhone and Android. We will tell you honestly whether native or cross-platform suits your app, and every app goes live under your own store accounts.

Mobile App Development

A good mobile app earns its place on someone's home screen by doing one job well and quickly. Before we write any code we agree what that job is, who the users are and which features belong in the first release. That keeps the first version focused and gets it into users' hands sooner, so the next round of decisions is based on real usage.

For most business apps a cross-platform approach with React Native, Expo or Flutter gives you one codebase for both platforms and a lower running cost. Where an app leans heavily on device hardware, complex animation or platform-specific features, native Swift and Kotlin can be the better choice. We explain the trade-off in writing so you can decide with the facts in front of you.

We handle the parts that often catch teams out: push notifications, offline behaviour, secure storage of tokens, deep links, store screenshots and listings, and the review process for both stores. Apps are published under your own Apple and Google developer accounts, and we can stay on for OS updates, new features and crash monitoring after launch.

What we deliver

Cross-platform apps

One React Native, Expo or Flutter codebase delivering iOS and Android apps with a native feel.

Native apps

Swift and Kotlin apps where performance or deep device integration justifies it.

Backend and API

The server, database and API the app talks to, including authentication and push notifications.

Offline and sync

Local storage and background sync so the app keeps working on patchy connections.

Store submission

Listings, screenshots, privacy details and submission to the App Store and Google Play under your accounts.

Post-launch support

Crash monitoring, OS compatibility updates and a planned roadmap of improvements.

How it works

From brief to launch

The same five stages on every project, with a working demo every two weeks.

1

Discover

We learn your business, users and goals, then agree a clear written scope.

2

Design

Wireframes and interactive prototypes you can click through before we write code.

3

Build

Two-week sprints with a working demo at the end of each one.

4

Launch

Testing, security checks, deployment and app-store submission handled for you.

5

Grow

Monitoring, support and new features as your users and business grow.

FAQ

Mobile App Development questions

Native or cross-platform?

Cross-platform suits most business and consumer apps and keeps cost down. Native is worth it for apps that depend on heavy device hardware use, demanding graphics or the very latest platform features.

How long does a mobile app take?

A focused first release is typically 8–12 weeks from signed-off requirements, depending on the number of screens, integrations and backend work involved.

Whose developer accounts are used?

Yours. The app is published under your Apple Developer and Google Play accounts, so you control the listing, reviews and revenue.

Do you handle App Store rejections?

Yes. We prepare submissions against the current store guidelines and deal with any reviewer feedback until the app is approved.

Can the app work offline?

Yes, where the use case needs it. We store data locally on the device and sync it in the background when a connection returns, with clear rules for handling conflicting changes.

Do we also need a website or admin panel?

Most business apps need an admin panel so your team can manage users, content and orders, and we usually build it as part of the same project. A public website is optional and depends on how customers will find you.

How do app updates work after launch?

Updates are released through the App Store and Google Play under your accounts, each going through store review. Some content and configuration changes can be pushed without a full store release, depending on the technology used.

Can you add push notifications and in-app payments?

Yes. We set up push notifications for both platforms and integrate payments, using the stores' own in-app purchase systems where their rules require it and payment providers such as Stripe where they allow it.

What does an app need for the store privacy requirements?

Both stores require a privacy policy and a declaration of what data the app collects and why. We prepare the technical details for these declarations, while the policy wording remains your responsibility with your advisers.

Can you take over an app another developer built?

Yes. We review the code, build setup and store accounts first, fix anything that blocks releases, and then agree a plan for updates and new features.

Have a project in mind? Let’s talk.

Tell us what you are building. We reply within one business day with next steps β€” and we are happy to sign an NDA first.