Compliance-first delivery
From idea to App Store, securely
Mobile users are unforgiving: an app that is slow to open, loses data on a train, or asks for a password every time gets uninstalled. Behind the scenes, mobile also brings its own risks — tokens stored insecurely, APIs that trust the client too much, and release processes that depend on one person’s laptop.
We help you choose the right approach for your product — React Native or Flutter for one codebase across platforms, or native Swift and Kotlin where performance or device features demand it — then build with offline-first data sync, secure storage via the platform keychain/keystore, and biometric sign-in where appropriate. The back end is built by our software development team with versioned APIs designed for mobile clients. Builds, tests and store submissions run through an automated pipeline, and we use the OWASP MASVS as the security baseline; before launch, apps can be independently tested by our mobile penetration testing team.
You get an app in both stores, a pipeline that can ship updates in hours rather than days, crash and performance monitoring, and source code you own. For healthcare products we build with HIPAA-aligned data handling and can connect to clinical systems through our FHIR and SMART on FHIR work.
- React Native, Flutter or native Swift/Kotlin
- Offline-first data sync with conflict handling
- Biometric sign-in and encrypted on-device storage
- Automated builds, tests and store releases
- Crash reporting, analytics and staged rollouts
What's Included
Everything you need, delivered by a senior, security-first team.
iOS & Android Apps
Cross-platform or native apps with platform-appropriate UX and accessibility.
Offline Sync
Local storage and sync strategies that keep the app usable on poor connections.
Secure Auth
OAuth/OIDC sign-in, biometrics, token handling and encrypted storage per OWASP MASVS.
Mobile Back Ends
APIs, push notifications, file uploads and admin panels designed for mobile clients.
Automated Testing
Unit, UI and device-matrix tests run on every build.
Release Pipelines
Signed builds, TestFlight/internal tracks, store submission and phased rollouts.
Mobile apps people keep using
A successful mobile app is fast to open, works on a poor connection, protects the user’s data and gets better with every release. We design and build iOS and Android apps — together with the APIs and cloud backend behind them — and set up the testing and release automation that keeps them healthy after launch.
Native vs cross-platform
| Approach | Strengths | Trade-offs | Good fit for |
|---|---|---|---|
| Native (Swift / Kotlin) | Best performance and immediate access to new platform features | Two codebases to build and maintain | Graphics-heavy, hardware-intensive or platform-specific apps |
| React Native | One TypeScript codebase, large ecosystem, shares skills with web teams | Some native modules still needed | Business, commerce and content apps |
| Flutter | One Dart codebase, consistent custom UI on both platforms | Smaller hiring pool than JavaScript | Brand-led UI and rapid iteration |
| Progressive web app | No app store, instant updates | Limited device APIs and store presence | Simple tools and internal apps |
We recommend an approach after understanding your features, audience, budget and who will maintain the app.
What we build
- Customer apps — booking, ordering, account management, loyalty and self-service.
- Field and workforce apps — inspections, checklists, photo capture and offline data collection that syncs later.
- Healthcare apps — patient engagement and reminders built with privacy controls appropriate for health data.
- Companion apps for existing web platforms and SaaS products.
How we build mobile apps
Discovery and UX
User journeys, wireframes and a clickable prototype to validate the flow before development starts.
Backend and APIs
Secure APIs, authentication (OAuth 2.0/OpenID Connect, passkeys or social login), push notifications and data storage. Our custom software development team builds and runs the backend.
Offline-first data
Local storage and conflict-aware sync so the app works in basements, hospitals and rural areas.
Security
Secure token storage in Keychain/Keystore, certificate pinning where appropriate, no secrets in the app bundle, and testing against the OWASP Mobile Application Security guidance (MASVS). We recommend an independent mobile penetration test before launch for apps handling sensitive data.
Testing and release automation
Unit, integration and UI tests, device-farm testing, crash reporting, and automated builds and store submissions with tools such as Fastlane, Expo EAS or Codemagic.
App store readiness
We prepare store listings, privacy labels and data-safety forms, review guideline compliance and handle TestFlight and Play Console testing tracks, so review rejections do not derail your launch date.
Common pitfalls
- Building every feature for version one instead of launching a focused MVP — see AI-driven rapid development for fast prototyping.
- Ignoring offline behaviour until users complain.
- Hard-coding API keys in the app.
- No crash reporting or analytics, so problems are invisible.
- No plan for OS updates, which can break apps every year.
Deliverables
- Source code for app and backend in your repositories, under your developer accounts.
- Automated build and release pipelines.
- Store listings, documentation and a maintenance plan.
See how we apply this in our own products, such as the Appointment Reminder App for WhatsApp and SMS reminders.
How We Take an App to the Stores
Define
Users, core journeys and platform choice; clickable prototype to test the flow.
Build
Iterative development with regular test builds on real devices for your team.
Secure & Test
Security review against MASVS, device testing and store-readiness checks.
Release & Iterate
Store submission, staged rollout, monitoring and a roadmap of improvements.
Frequently Asked Questions
For most business apps, a cross-platform framework such as React Native or Flutter gives one codebase for iOS and Android with near-native performance. Native Swift and Kotlin make sense for graphics-heavy or hardware-intensive apps. We recommend based on your features and team.
Cost depends on the number of screens and features, the backend required, integrations and platforms. After discovery we provide a fixed-price proposal for an MVP or a monthly team arrangement for ongoing product development.
A focused MVP can often be built in a few months, including the backend and store submission. Larger apps are delivered in releases, with the first usable version as early as possible.
Yes. We handle builds, signing, store listings, privacy disclosures and submission, under your own Apple and Google developer accounts so you retain ownership.
Yes. Maintenance plans cover OS and dependency updates, crash monitoring, bug fixes and small improvements, with new features scoped separately.
Book a free consultation. We talk through your idea and users, then propose a discovery phase with a prototype, scope and estimate.
Ready to get started with Mobile App Development?
Book a free consultation — we'll map a secure, practical path forward.