Mobile app development: iOS, Android and the backend behind them
Hostlyx is a mobile app development company that plans, designs and builds apps for iPhone and Android, either natively or with Flutter or React Native. The same team builds the backend API and admin panel, hosts them, and publishes the app to the App Store and Google Play. You get a fixed written quote after a scoping call, before any work starts.
Most app projects go wrong in the gaps between suppliers: one agency designs, a freelancer builds the app, someone else sets up the server, and nobody owns the whole thing when a login stops working. Hostlyx closes those gaps. One team scopes the app, builds it, builds the backend it talks to, hosts that backend and handles the store listings.
We start by deciding how the app should be built. Native Swift and Kotlin suit apps that lean hard on the camera, sensors, background work or platform look and feel. Flutter or React Native suit most business apps, where one codebase for both stores keeps the build and later updates simpler. We explain the trade-off for your app in plain terms before you commit.
Pricing is honest. After a scoping call we send a fixed written quote listing the screens, features and integrations it covers, so you know the cost before work begins. You own the source code, the store accounts and the server, and we keep the app working through operating system updates.
You are quoted and invoiced in US dollars by Zorixo Ventures Ltd, a UK company, and pay by card through Stripe. The apps are published under your own Apple and Google developer accounts, and the source code is yours. Store fees, such as the Apple developer membership, are paid by you directly to Apple and Google, so the accounts never depend on us.
What is included
Native or cross-platform advice
We recommend Swift and Kotlin, Flutter or React Native based on your features, budget and who will maintain it, and write down why so the choice is clear.
UX and interface design
Wireframes and screen designs for both platforms, following Apple and Google interface guidelines, reviewed with you before any code is written so changes stay cheap.
App build and testing
The app built screen by screen, tested on real iPhones and Android phones of different sizes and ages, with test builds shared so you can try it as it grows.
Backend API and admin panel
The server the app talks to: user accounts, data, notifications, payments and an admin panel where your team manages content, orders and users without touching code.
Hosting for the backend
We host the API, database and admin panel on our own servers, with SSL, backups and monitoring, so there is one team to call when something needs attention.
App Store and Play Store publishing
Store listings, screenshots, privacy details and submission under your own developer accounts, plus handling any review feedback from Apple or Google until the app is approved.
Tools and platforms: Swift, SwiftUI, Kotlin, Jetpack Compose, Flutter, React Native, TypeScript, Laravel, Node.js, PostgreSQL, MySQL, Firebase Cloud Messaging
Packages
Every project is quoted in writing in USD before work starts, and invoiced by Zorixo Ventures Ltd. The price you agree is the price you pay.
App MVP
Founders who need a focused first version to test with real users.
- Scoping workshop and feature list
- Core screens on iOS and Android
- Simple backend with user accounts
- Basic admin panel
- Store submission
Business app
Businesses launching a full customer app with payments and notifications.
- Complete UX and interface design
- Cross-platform or native build
- Backend API, database and admin panel
- Payments and push notifications
- Backend hosting with backups
- Store listings and launch support
App platform
Companies building an app alongside a web platform with several user roles.
- Shared backend for web and mobile
- Multiple user roles and permissions
- Third-party and ERP integrations
- Analytics and crash reporting
- Ongoing maintenance and OS updates
How we work
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Scoping call
We talk through what the app must do, who uses it and what it connects to, then agree the platforms and the approach that fits.
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Fixed written quote
You receive a written quote listing every screen, feature and integration included, so cost and scope are settled before any work begins.
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Design
Wireframes and screen designs for the key flows, reviewed and approved by you before development starts, so the build follows an agreed plan.
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Build and test
The app and backend are built in stages, with regular test builds on your own phone through TestFlight and Play Console testing tracks.
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Launch
We submit to the App Store and Google Play under your accounts, answer any review questions, and switch the backend to live.
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Support
After launch we fix issues, keep the app working with new iOS and Android versions, and quote any new features separately.
Read before you decide
Questions people ask
How much does it cost to build a mobile app?
It depends on the number of screens, whether you need iOS, Android or both, native or cross-platform, the backend and admin panel, and integrations such as payments or maps. After a scoping call we send a fixed written quote listing exactly what is included, so you know the full cost before work starts.
Should I build a native app or a cross-platform app?
For most business apps, Flutter or React Native is the sensible choice: one codebase for both stores and simpler updates. Native Swift and Kotlin make sense when the app relies heavily on device hardware, background processing or the newest platform features. We recommend one after scoping and explain why.
Can you host the backend and admin panel for my app?
Yes. We build the API, database and admin panel and host them on our own servers with SSL, backups and monitoring. That means the team that built the app also runs the server it depends on, so problems are traced and fixed in one place.
Do I own the source code of my app?
Yes. The source code, designs, store listings and developer accounts are yours. The app is published under your own Apple and Google developer accounts, and we hand over the code repository so you can move to another team at any time.
How long does it take to build a mobile app?
It depends on scope: a focused first version takes far less time than an app with payments, several user roles and integrations. The written quote includes a schedule for your app, and Apple and Google review times are allowed for before launch.
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Tell us what you need
A domain, hosting, a new website, an app or more customers. One team handles all of it, and you get a written quote before any work starts.