Mobile App Development Company for iOS and Android SaaS Apps
PilotLab is a mobile app development company offering mobile app development services for iOS, iPadOS, Apple Watch and Android, built to work as an extension of your SaaS platform. We share authentication, APIs and data models with your web product so mobile users get the same capabilities, reliably and securely.
What to Expect From Our Mobile App Development Services
For many SaaS products, mobile is where users check status, approve work, capture data in the field and respond to notifications. A good app is not a shrunken website: it works offline, starts quickly, respects platform conventions and syncs reliably with the backend. Our mobile app development services cover native and cross-platform apps designed around those mobile-specific jobs, connected to the same APIs and permissions as your web application.
The first decision is usually native or cross-platform. Native Swift and Kotlin apps give the best performance and access to platform features, while React Native or Flutter let you share most code across iOS and Android. Our article on native vs cross-platform mobile apps and our comparison of mobile app development frameworks walk through the tradeoffs. We base the recommendation on your feature list, performance needs, hardware access and the skills of the team that will maintain the app after launch.
Field and operational users often work with poor connectivity. We build offline-first apps with local databases, background sync and conflict resolution, so drivers, technicians and inspectors can keep working and their data reaches the server when the connection returns. This is common in transportation and logistics, where we design sync around proof-of-delivery photos, signatures and location updates. The same patterns apply to inspections, field service and healthcare home visits, where connectivity is unpredictable.
Launch is only the start. We set up crash reporting, analytics, automated builds and staged rollouts through TestFlight and Google Play tracks, and handle App Store review requirements. For budgeting, our guide to mobile app development cost explains what drives effort, from the number of platforms to offline support and integrations. We also plan for annual iOS and Android releases, which require testing and occasional updates to keep apps current.
Why Mobile Apps for SaaS Products Fall Short
Feature gaps with the web app
Mobile apps built separately from the platform lag behind, use different business rules and frustrate users who expect the same data and actions everywhere.
Unreliable sync and data loss
Apps that assume constant connectivity fail in warehouses, vehicles and rural sites, losing user input or creating duplicate records when they reconnect.
Slow, unstable releases
Manual builds, missing automated tests and surprise App Store rejections delay releases and leave crashes in users' hands for weeks.
Weak mobile security
Tokens stored insecurely, missing certificate validation and verbose logs expose user data, which blocks deals with security-conscious customers.
iOS, Android and Cross-Platform App Development Capabilities
We build and maintain mobile apps across platforms, with the backend integration and release processes that keep them dependable.
Native iOS development
Swift and SwiftUI apps for iPhone and iPad, plus Apple Watch companions and widgets, following Apple's Human Interface Guidelines.
Native Android development
Kotlin and Jetpack Compose apps with Material Design, tested across the device sizes and OS versions your users actually have.
Cross-platform development
React Native or Flutter apps that share most code across iOS and Android, with native modules where performance or platform APIs require them.
Offline-first architecture
Local storage, background sync, conflict resolution and queued actions so apps stay useful without a network connection.
Push notifications and engagement
Timely, personalized notifications through APNs and Firebase Cloud Messaging, with deep links and user-controlled preferences.
In-app purchases and subscriptions
StoreKit and Google Play Billing integration synchronized with your SaaS entitlements, so access stays consistent across web and mobile.
Mobile security
Secure token storage in Keychain and Keystore, biometric login, certificate pinning where appropriate and secure handling of sensitive data.
App Store optimization and release management
Store listings, screenshots, review guideline compliance, phased releases and automated builds with Fastlane and CI.
How We Build and Launch Mobile Apps
- 1
Mobile strategy and scoping
We define mobile-specific use cases, choose native or cross-platform, and identify the API and backend changes the app will need.
- 2
UX design and prototyping
We design flows for small screens, one-handed use and offline states, and test clickable prototypes with real users before development.
- 3
Development and API integration
We build the app in sprints alongside any backend work, with shared authentication and automated tests on every build.
- 4
Beta testing and store submission
We distribute builds through TestFlight and Google Play testing tracks, fix issues found in beta and prepare store listings for review.
- 5
Launch, monitoring and updates
We release in phases, monitor crash rates and performance, and plan regular updates for new features and OS releases.
Mobile Technology Stack
iOS
- Swift
- SwiftUI
- UIKit
- Core Data
- StoreKit
Android
- Kotlin
- Jetpack Compose
- Room
- WorkManager
- Google Play Billing
Cross-platform
- React Native
- Expo
- Flutter
- TypeScript
- SQLite
Backend and release
- Firebase Cloud Messaging
- Sentry
- Fastlane
- GitHub Actions
- GraphQL and REST APIs
What You Receive
- iOS and Android apps published to the App Store and Google Play
- UX designs and interactive prototypes
- Source code in your repositories with automated build pipelines
- Backend API extensions required by the mobile app
- Offline sync and push notification infrastructure
- Crash reporting and product analytics setup
- Store listings, release checklist and maintenance plan
Mobile App Development Guides and Insights
All articlesOffline-First Mobile Apps: Data Sync Strategies That Work
How to design offline-first mobile apps: local storage choices, sync patterns, conflict resolution and the tools that make reliable data sync practical.
How Much Does Mobile App Development Cost in 2026?
A practical breakdown of mobile app development cost in 2026: typical budget ranges by app complexity, what drives cost up or down, and the ongoing costs most estimates leave out.
Native vs Cross-Platform Mobile Apps: How to Choose in 2026
Native vs cross-platform mobile apps compared on performance, cost, team skills and long-term maintenance, with a practical decision framework for founders and CTOs.
Mobile App Development Frameworks: React Native vs Flutter vs Native
Compare modern mobile development frameworks. Learn when to choose React Native, Flutter, or native development for iOS and Android apps.
Mobile App Development: Frequently Asked Questions
Should we build a native or cross-platform mobile app?
Cross-platform frameworks such as React Native or Flutter suit most SaaS companion apps because one team can ship to iOS and Android with largely shared code. Native Swift and Kotlin are better for apps that rely heavily on device hardware, complex animations or platform features like Apple Watch. We recommend an approach after reviewing your feature list and team skills.
How much does mobile app development cost?
Cost depends on the number of platforms, the complexity of screens and workflows, offline requirements, integrations and backend changes. A focused companion app costs far less than a full field operations app with offline sync. We estimate after a short scoping phase, and our guide to mobile app development cost explains the main drivers.
How long does it take to build a mobile app?
A focused first version of a companion app typically takes 10-16 weeks, including design, development, beta testing and store review. Apps with offline sync, hardware integrations or multiple user roles take longer. If your API already supports the needed features, timelines shorten considerably because most of the work stays on the client.
Can our mobile app work offline?
Yes. We store data locally on the device, queue user actions and sync them when connectivity returns, with rules for resolving conflicts if the same record changed elsewhere. Our article on offline-first mobile app sync explains the patterns we use and the tradeoffs between simple and fully collaborative sync.
Do you handle App Store and Google Play submission?
Yes. We prepare store listings, screenshots, privacy disclosures and review notes, submit builds and respond to reviewer feedback. We design features with store policies in mind, especially around subscriptions, account deletion and data collection, which reduces the risk of rejection. Releases are phased so issues can be caught before reaching every user.
Can you add a mobile app to our existing SaaS platform?
Yes, and that is the most common engagement. We review your existing APIs, authentication and data model, add the endpoints or push infrastructure the app needs, and build the app on top. Sharing business logic through your backend keeps web and mobile behavior consistent and avoids maintaining two versions of the same rules.
Talk to Our Mobile App Development Team
Book a free 30-minute consultation. We'll review your goals and send a clear plan, timeline and estimate.
Schedule a Consultation