Services / Mobile
Mobile App Development
We build mobile apps that carry real operations, from driver and yard apps running port logistics to resident apps for property platforms. Built for the devices your people actually carry.
Mobile work we have shipped
Each of these is a delivered application, not a capability claim. The case studies carry the details.
- Driver and yard apps for port logistics
- B2B commerce for retail buyers
- Practice management for veterinary teams
- Resident apps for property management platforms
Technology
Platforms, frameworks, and what we connect them to
Cross-platform
- React Native
- Flutter
- Xamarin
- Ionic
- Electron
Native
- iOS
- Swift
- Android
- Kotlin
Device and offline
- Offline-first sync
- Barcode and package scanning
- NFC
- Push notifications
- Tablet-first interfaces
Backends and services
- .NET
- Node.js
- AWS
- Amazon Cognito
- Twilio
- REST and GraphQL APIs
Mobile work reaches us in two shapes. Either an operation has moved beyond what people can coordinate by phone and paper, or an existing platform needs to work in someone's hand rather than at a desk. Both describe systems we have shipped. The transport management platform in our case studies puts live operational data in front of drivers and yard managers across four port facilities. The property management platform puts a resident app in the hands of tenants for requests and updates.
We build with React Native where a single codebase serves both platforms well, and natively where the app depends on hardware behavior or sustained performance. Either way the work covers the full path: user research, prototyping, development, testing across the devices your team actually carries, store submission, and the monitoring that catches problems before your users report them.
The parts that decide whether a mobile app survives are rarely the parts that demo well. Offline conflicts, sync integrity, store review, and operating system updates arrive after launch, which is why we plan for them first and why the team that built your app is still here when the next OS version ships.
What separates a working mobile app from a demo
Built for field conditions
Warehouses, yards, and vehicles have poor connectivity and gloved hands. We design for the environment the app is used in, not the office it was designed in.
Works offline, syncs cleanly
Apps that keep working without a connection and reconcile without duplicates or lost records when the signal returns.
Performance on real devices
Smooth on the three-year-old handset your team actually carries, not just the newest phone in the office.
Connected to your systems
Live data from the platforms you already run, so the app is part of the operation rather than another place to type things twice.
Store submission handled
We manage App Store and Google Play submission, compliance requirements, and review feedback on your behalf.
How we build mobile apps
- 1
Discovery and Scoping
Watching the work before designing the screens.
User Research
Understanding the workflows, conditions, and constraints of the people who will use the app every day.
Platform Strategy
Choosing React Native, fully native, or a mix, based on performance needs and device requirements rather than fashion.
Technical Scoping
Mapping architecture, integrations, and offline and sync requirements before development starts.
- 2
UX and Prototyping
Confirming the flow before building it.
Wireframes and Flows
Screens that map every journey, including the edge cases and error states field teams hit most.
Interactive Prototype
A clickable prototype for sign-off and usability testing before development begins.
- 3
Development
Working builds throughout, not at the end.
Agile Delivery
Short cycles with installable builds, so you always know exactly where the product stands.
Code Quality
Type-safe code, automated testing, and peer review on every change.
Automated Pipelines
Builds and test suites that catch regressions before they reach your team.
- 4
QA and Launch
Tested on the devices your users own.
Device and OS Testing
Verified across the real spread of hardware and operating system versions in your organization.
Store Submission
We handle submission, metadata, screenshots, and compliance review.
Post-Launch Monitoring
Crash reporting and analytics wired up from day one so problems surface immediately.
- 5
Support and Iteration
Keeping the app current as platforms change.
OS Compatibility
Updates that keep the app working as Apple and Google ship new versions.
Feature Iteration
Improvements driven by real usage rather than guesswork.
Why RothTech
Most mobile projects fail on the parts that surface after launch, such as offline conflicts, OS updates, store rejections, and devices nobody tested. We have shipped apps that run port operations in the field and resident apps for property platforms, so those parts are the ones we plan for first. The same senior team is still here when the next operating system version lands.
Frequently Asked Questions
We scope first and quote in full before you commit. The main cost drivers are the number of platforms, whether the app needs to work offline, how many systems it integrates with, and any certification or compliance requirements. Apps that extend an existing platform cost considerably less than apps that need their own backend built alongside them.
React Native when one codebase can serve both platforms without compromising the experience, which covers most business applications. Fully native when the app depends on hardware behavior, sustained performance, or platform features where a bridge would get in the way. We make that call during scoping and explain the tradeoff rather than defaulting to one answer.
A permanent senior engineering team in Osijek, Croatia, including the mobile specialists who built the payment and field applications in our case studies. The same people stay available years later when the app needs updating for a new OS release.
Usually yes, and that is often the cheapest path. We build against the APIs and data you already have, extending them where they fall short of what a mobile client needs. The field apps in our case studies extend platforms the business already ran rather than replacing them.
Yes, including metadata, screenshots, privacy declarations, and responses to review feedback. Payment and health-adjacent apps attract closer review, and we have taken both through it.
Related Case Studies
Retail Sourcing & Reseller Marketplace Platform
A marketplace connecting retailers sourcing products with individuals reselling them for rewards, covering marketing, inventory, and transactions in one system, down to the warehouse app that scans the package.
Transport Management System for Port Logistics & Cartage
A custom transport management system for port cartage and warehousing, deployed across four major sea ports: container tracking, vessel schedule integration, and automated billing on one platform.