--- title: "Mobile app development for iOS and Android" description: "Remote mobile app development agency: iOS and Android apps, APIs and back office, for your customers or your teams in the field. Free quote within 48 hours." canonical: https://sdk.enterprises/en/mobile-app-development language: en --- # Mobile app development, from the screen to the server. A mobile app is screens, but also APIs, a back office, notifications, user accounts and publishing on the App Store and Google Play. We design and build all of it, for your customers or for your teams in the field, and stay responsible for it working after launch. - Free quote within 48 hours - iOS, Android and back office: one team to talk to - Our engineers re-architected APIs serving 50M+ monthly users [Book a call](https://sdk.enterprises/en/book-a-call). [Free AI audit](https://sdk.enterprises/en/free-ai-audit). ## When a mobile app is worth it - **Your field teams work on paper**: Job sheets, photos, signatures, stock counts: an app that works on site and sends everything back to the office. - **Your customers ask for an app**: Booking, ordering, tracking a delivery, finding their documents: what your customers do today by phone or email. - **Your mobile website is no longer enough**: Notifications, camera, location, offline use: what a website does less well than an app. - **An existing app to take over**: Slow, unstable or no longer maintained: we audit it, then fix it or rebuild it. ## A complete app, not just screens - **User journeys and mock-ups**: Screens agreed with you, and with a few users, before a line of code is written. - **The iOS and Android app**: Built, tried on real devices and published on the App Store and Google Play. - **APIs and back office**: The server, database, accounts and admin interface that keep the app running. - **Maintenance**: iOS and Android updates, fixes, new features: we stay responsible after launch. ## From idea to published app - **Scoping**: The users, the key journeys, the data and the tools to connect. What must be in the first version, and what can wait. - **Free quote within 48 hours**: The scope of the first version, the technical choices and the price, in writing. - **Design and build**: Mock-ups, then building in stages, with a version to try regularly. - **Release and follow-up**: Publishing to the stores, monitoring errors and user feedback, further changes. ## Examples of mobile apps for a small company The apps that serve a mid-sized business best are not social networks: they are tools. - **Field app**: Jobs, inspections, photos and signatures, even without signal, synced back at the office. - **Customer app**: Orders, appointments, tracking and documents, with notifications. - **Internal app**: Schedules, requests, approvals and announcements for teams who do not work at a computer. - **App with AI**: Photograph a document or dictate a report, and let AI fill in the fields. ## Native or cross-platform app? Two ways to build the same app. We settle it with you based on your screens, your budget and your users. | Question | Native (Swift, Kotlin) | Cross-platform (React Native, Flutter) | | --- | --- | --- | | Code | One app per system: iOS and Android built separately. | One codebase for iOS and Android, with native parts where needed. | | Device access | Complete, as soon as Apple or Google release something new. | Very broad; some recent features need a native module. | | Development effort | Higher: two apps to build and maintain. | Usually lower: one codebase, one team. | | When to choose it | Demanding graphics, features closely tied to the device. | Most business and customer apps. | ## What an app needs on the server side, our engineers have done at scale At NorthStar Network, our engineers re-architected critical APIs serving 50M+ monthly users. For Slump, they built real-time dashboards fed by 5G data streams. These APIs and data flows are what keep an app fast as its number of users grows. - [Re-architecting APIs for a sports media platform with 50M+ monthly users](https://sdk.enterprises/en/work/northstar-sports-media-apis) - [Real-time 5G network monitoring for operators in southern Spain](https://sdk.enterprises/en/work/slump-5g-monitoring) ## Questions before you launch a mobile app ### How much does a mobile app cost? It depends on the screens, the features (payments, offline use, notifications) and the tools to connect. We do not publish prices: after a first conversation, you get a free quote within 48 hours, with the scope of the first version. ### Do we need an app, or is a website enough? If your users come occasionally, a well-built website is often enough. An app makes sense for frequent use, notifications, the camera, location or offline work. We will tell you honestly. ### Who publishes the app on the stores? We prepare and submit the app to the App Store and Google Play, under your company's developer account. ### Can you take over an existing app? Yes. We start with an audit of the code and infrastructure, then propose to fix, modernize or rebuild, whichever costs least over time. ## Start from your need - [Free AI audit](https://sdk.enterprises/en/free-ai-audit): A 45-minute video call to find what AI can automate in your business, then a written summary of 3 automations or AI agents to start with. - [n8n automation](https://sdk.enterprises/en/n8n-automation): n8n workflows that connect your tools and take over repetitive work, with AI where it adds something. - [Website development](https://sdk.enterprises/en/website-development): Fast business websites structured for Google and connected to your tools, built to bring in enquiries. - [Custom software](https://sdk.enterprises/en/services/product-engineering): Web and mobile apps, platforms and APIs that stay fast as you grow. - [Application security](https://sdk.enterprises/en/services/secure-systems): Security and compliance for software that handles sensitive or regulated data. - [Hire full-stack developers](https://sdk.enterprises/en/hire/full-stack-developers): Vetted freelance full-stack developers who ship features from the database to the screen. - [Hire security engineers](https://sdk.enterprises/en/hire/security-engineers): Vetted freelance security engineers for code reviews, secure APIs and GDPR-aware data handling. - [How much does an app cost? What drives the price](https://sdk.enterprises/en/insights/how-much-does-an-app-cost) - [What a paid software discovery phase should deliver](https://sdk.enterprises/en/insights/what-a-paid-discovery-phase-should-deliver) - [Fixed price or time and materials: choosing a contract model](https://sdk.enterprises/en/insights/fixed-price-or-time-and-materials)