Mobile App Consulting & Development
CoreLine designs and builds mobile apps for iOS, Android, and cross-platform. From product strategy through App Store launch, we deliver mobile products that scale - with senior engineers who own the full stack, not just the screens.
iOS & Android
Native Swift and Kotlin
React Native cross-platform
App Store optimization
Strategy & Design
Mobile product strategy
UX for touch interfaces
Offline-first architecture
Backend & Infrastructure
API design for mobile
Push notification systems
Mobile analytics
Sound familiar?
You need a mobile app but aren't sure whether to go native, cross-platform, or progressive web
Your existing app is slow, crashy, or stuck on an outdated framework
You need to ship on iOS and Android without doubling your development cost
Your mobile product needs to work offline in areas with poor connectivity
Mobile engagements start with platform strategy and end with App Store approval. We build cross-platform when it makes sense and native when it doesn't - the decision is driven by product requirements, not technology preference.
We assess your target users, performance requirements, and budget to recommend native, cross-platform, or progressive web. The recommendation includes total cost of ownership across platforms.
Mobile UX design runs ahead of development. We build in two-week sprints with device testing on every commit. Beta builds are available for review throughout development.
App Store submission, crash monitoring, and analytics setup are part of the launch package. Post-launch sprints iterate based on real user behaviour and store reviews.
Mobile outcomes
Proof in production
Using solutions such as React Native, Flutter, AWS, and many others makes it possible for us to upgrade your product as much as possible and to achieve a thriving collaboration. Here you will find our guide through our most used technologies and case studies related to each one.
AWS offers the tools to build powerful, flexible, and scalable applications, from compute and storage to databases and content delivery.
Simply put, Flutter is Google’s cross-platform framework that lets you build mobile, web, desktop, and embedded apps, all from a single codebase.
React Native is Facebook’s cross-platform framework that combines the best of React with native platform features - perfect for new projects or enhancing existing ones.
Other technologies we use
Frequently asked questions
React Native when: you need to ship on both platforms with a single codebase, your app is primarily UI-driven, and you want to share code with a web app. Native when: you need deep platform integration (AR, complex animations, hardware APIs), or performance is non-negotiable (gaming, real-time video). We recommend based on your product requirements.
Yes. We audit the existing app, assess what can be preserved, and plan an incremental migration. If the app is on a deprecated framework we recommend a rebuild with data and user migration.
Yes. App Store and Google Play submission, review process management, and metadata optimization are included in the launch package.
We implement offline-first architecture with local data storage, background sync, and conflict resolution. The app works without connectivity and syncs when the connection is restored.
Push notification infrastructure (FCM/APNs), deep linking, and mobile analytics (event tracking, crash reporting, performance monitoring) are standard in every mobile engagement.
