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JustSoftLabJustSoftLab
JustSoftLabJustSoftLab
AI Assistant
Services/Platform Engineering/Mobile Development

Mobile apps that feel right.

Cross-platform and native apps that behave like users expect on every device. Offline-first architecture, push notifications, biometric auth, and app store deployment. Apps people actually keep on their home screen.

4.7★

Average app store rating across releases

80%

Code shared across iOS and Android

< 12 wks

From kickoff to App Store submission

< 2s

Cold start time on mid-range devices

What we build

Mobile apps built for real devices.

React Native & Flutter

Cross-platform apps with one codebase, native performance. Right framework choice based on your team, design requirements, and platform features you actually need.

iOS & Android native

Swift/SwiftUI and Kotlin/Jetpack Compose when cross-platform isn't enough. Full access to platform features, best-in-class performance, and platform-specific UX patterns.

Offline-first sync

Apps that work without connectivity. Local databases, conflict resolution, background sync. Users keep working on flights, in elevators, in the middle of nowhere.

Push notifications

Rich push with images, actions, and deep linking. Segmentation, A/B testing, delivery analytics. Notifications that users actually want to receive.

Biometric & secure auth

Face ID, Touch ID, fingerprint, secure enclave. Proper token management with refresh flows. Security that doesn't make users type passwords ten times a day.

App store deployment

CI/CD pipelines for TestFlight and Play Store internal testing. Code signing, version management, phased rollouts, crash reporting. Ship mobile updates without the usual drama.

Sound familiar?

Mobile problems we solve every quarter.

Our mobile app crashes 8% of sessions. Users leave 1-star reviews mentioning it.

We integrate crash reporting (Sentry, Firebase Crashlytics), identify top crash sources, and fix them systematically. Crash rate typically drops below 0.5% within a month.

We have iOS and Android teams that keep building features slightly differently.

We migrate to React Native or Flutter with shared business logic. Single codebase, consistent behavior, 2x faster feature delivery. Native modules only where needed.

Our app is slow on older Android devices that half our users have.

We profile performance on low-end devices, optimize render paths, reduce JavaScript bundle size, and lazy-load screens. The app feels snappy on devices your users actually own.

Tech stack

Tools we use in production.

React Native
Flutter
Expo
Swift
SwiftUI
Kotlin
Jetpack Compose
Objective-C
Java
Firebase
AWS Amplify
Supabase
GraphQL
REST
WatermelonDB
Fastlane
Bitrise
App Center

Ready to build

Let's build a mobile app users will love.

45 minutes with our mobile engineers. We'll review your requirements, recommend the right tech stack, and outline a plan from prototype to App Store launch.