Mobile App Development
iOS · Android · React Native
We build iOS and Android apps from a single codebase and deliver them together with their API, admin panel and store publishing.
Next to Future builds mobile apps for iOS and Android. On most projects we ship to both platforms from a single React Native codebase, and we switch to native development when an app needs deep hardware access or maximum performance. We deliver the whole system end to end: the app, its API, its admin panel and store publishing. React Native is a framework that produces real native interfaces for iOS and Android from one JavaScript or TypeScript codebase.
Who is it for?
- Brands that want to stay in touch with customers on the device in their pocket
- Organizations serving a defined audience such as residents, members or subscribers
- Companies that need fast tools for field teams that keep working offline
- Teams that want to bring an existing web application to the phone
The server and panel behind an app often matter as much as the app itself. We build that side in the same team, drawing on our web application development work.
What goes into a mobile app we build?
- The app: one codebase for iOS and Android, with an interface that follows each platform's conventions.
- API and server: a secure API that feeds the app, authentication and a bridge to your existing systems.
- Admin panel: a web panel where you manage content, users and notifications.
- Push notifications: templated, multilingual notifications through Firebase, targeted by person, group or event.
- Offline support: critical screens and data that stay usable on the device when the connection drops.
- Store publishing and maintenance: App Store and Google Play submissions, release tracking and updates for new operating system versions.
What does this look like in a real project?
The resident app we built for Kemerköy Sitesi, a 901-home community in Göktürk, Istanbul, is live on iOS and Android from a single React Native codebase. Residents check their balance and statements, report faults and complaints, invite guests and enter the site with a QR code that works even offline. Behind it run a JWT-secured mobile API, a bridge to the community's management system, apartment-specific push notifications through Firebase and an admin panel.
For a step-by-step look at the store process, read Publishing on the App Store and Google Play.
01 Scope
One team, app to store
01
iOS and Android
One React Native codebase for both platforms, with native Swift and Kotlin modules when deep hardware access is needed.
02
API and admin panel
A secure API that feeds the app, authentication, a bridge to existing systems and a panel for content and notifications.
03
Push and offline
Targeted push notifications through Firebase; critical screens and local data that keep working without a connection.
04
Publishing and maintenance
App Store and Google Play submissions, test distribution, release management and updates for new OS versions.
02 Process
Four steps from idea to store
01
Discovery
We define users, core scenarios and the scope of the first release. You get a screen list and a technical roadmap.
02
Design
We design an interface that fits iOS and Android conventions and test the critical flows in a clickable prototype.
03
Build
We build the app, API and panel in parallel and share test builds through TestFlight and Google Play testing tracks.
04
Launch and care
We prepare the store submission and follow the review. After launch we continue with crash monitoring and release updates.
03 Technology
One codebase, two platforms
We build the app with React Native and TypeScript and the back end with ASP.NET Core 8. When needed, we write native modules in Swift and Kotlin.
01
React Native app
Current React Native with the Hermes engine and the New Architecture; one codebase for iOS and Android.
02
API and panel
A JWT-secured mobile API on ASP.NET Core 8, a SQL Server database and a web-based admin panel.
03
Push and distribution
Push notifications with Firebase; builds and releases through Xcode, Android Studio, App Store Connect and Google Play Console.
- 01React Native
- 02TypeScript
- 03Swift
- 04Kotlin
- 05Xcode
- 06Android Studio
- 07Firebase
- 08App Store Connect
- 09Google Play Console
- 10ASP.NET Core 8
- 11C#
- 12SQL Server
- 13Redis
- 14Docker
- 15GitHub
04 Proof
Live in the stores
A mobile app project we delivered end to end, from design to store release.
05 FAQ
Frequently Asked Questions
The questions we hear most often before a mobile app project starts.
01Should we choose React Native or native development?
For most business apps, React Native is the right starting point: you ship to iOS and Android from one codebase and keep maintenance in one team. Native development comes first for heavy graphics, advanced camera or sensor use, and deep platform-specific integrations. The two approaches often work together, and we add native Swift or Kotlin modules inside a React Native app.
02What drives the cost of mobile app development?
Cost depends on the number of screens and user roles, whether the app needs a new API and admin panel behind it, integrations, features such as offline mode, payments and notifications, and how custom the design is. Whether you start on one platform or two and the scope of maintenance after launch also matter. After a short discovery call we share an estimate scoped to your needs.
03How long does it take to get an app into the stores?
It depends on scope; on most projects a focused first release can reach the stores within a few months. Building the API and panel from scratch, integrations and internal approvals extend the timeline. Store review also needs a place in the plan, since a rejection means fixes and a resubmission. That is why we recommend limiting the first release to the most critical scenarios.
04Do you handle App Store and Google Play publishing?
Yes. We prepare the submission with store listing text, screenshots, privacy details and test accounts, and we follow the review through. We recommend publishing under your own developer account, so the app appears in the stores under your brand and you keep control of the account. We guide you step by step through opening the account and the documents it requires.
05Can the app work without an internet connection?
Yes, if offline support is planned from the start. We store critical data securely on the device and sync it with the server once the connection returns. For example, the entry QR code in the Kemerköy resident app works without internet. In discovery we decide together which screens work offline and how conflicting changes are resolved.
06Does an app need maintenance after launch?
Yes. Apple and Google release new operating system versions every year, and the stores gradually require apps to be built with current development tools. Maintenance covers that compatibility, library and security updates, crash and error monitoring, and small improvements based on user feedback. We discuss maintenance up front as part of the release plan.
Touch the Future
Let's plan your app
Tell us about your idea, your users and the first release you have in mind, and we will map out the scope and roadmap together.