Mobile App Development
Mobile App Development
Cross-platform iOS and Android apps built with React Native and Expo. One codebase with native performance, proper background audio, offline support, and App Store delivery. We have built investor-demo-ready prototypes in 6 weeks and complex apps with audio, healthcare, and offline requirements.
6 Wks
Fastest Prototype
iOS+
Android
90%+
Client Satisfaction
8+
Years
What We Deliver
Our Capabilities
React Native & Expo Development
Cross-platform apps with a single TypeScript codebase for iOS and Android. Native modules where needed, Expo for fast iteration and OTA updates, EAS Build for App Store deployment.
Audio & Media Apps
Background audio playback, lock screen controls, progressive download, and media session integration. Built for apps where audio continuity when the phone locks is not optional.
Offline-First Applications
Local storage, sync on reconnect, conflict resolution, and progressive download. Apps that work reliably in areas with poor connectivity and resume gracefully when the network returns.
Healthcare & Sensitive Data Apps
Biometric app lock, encrypted local storage, data deletion flows, and privacy-by-design patterns for apps handling sensitive personal or health data.
App Store Deployment
End-to-end App Store and Google Play submission. Certificates, provisioning profiles, review guidelines compliance, and release management.
MVP & Prototype Delivery
Investor-ready prototypes built fast, with the technical foundation that can grow without a rewrite. We know what to build in week one and what to defer until you have traction.
Tech Stack
Technologies We Use
Why FriendsBit
What Sets Us Apart
We built the BeSound mental health audio app prototype in 6 weeks with background playback, lock screen controls, progressive download, and session tracking. It ran without issues at the investor demo.
We understand the non-obvious requirements of mobile platforms: background audio entitlements, media session metadata, foreground services on Android, biometric authentication, App Store review guidelines.
Our React Native apps share 85-90% of code between iOS and Android while maintaining native-feeling interactions on both platforms.
We build with offline-first in mind from day one. Adding offline support to an app that was not designed for it is far more expensive than building it in from the start.
Real Work
From Our Portfolio
Common Questions
Frequently Asked Questions
Should I build a native app or React Native?
React Native is the right choice for most products: one codebase, 85-90% shared code between iOS and Android, native-feeling interactions, and significantly lower development and maintenance cost. Native is only worth it when you need deep platform-specific capabilities that React Native cannot reach, which is rare.
How long does it take to build a mobile app?
A focused MVP can be delivered in 4-8 weeks. An app with audio playback, offline sync, healthcare data requirements, and App Store deployment takes 3-5 months. We delivered the BeSound mental health audio app prototype in 6 weeks.
Can you handle App Store and Google Play submission?
Yes. We manage the full submission process including certificates, provisioning profiles, review guidelines compliance, and release management for both App Store and Google Play.
How do you handle offline functionality?
Offline-first is a design decision made at the start, not an afterthought. We use local storage, background sync, and conflict resolution strategies from day one. Adding offline support to an app not designed for it costs more than building it in from the start.
Can you build apps that handle sensitive or healthcare data?
Yes. We have built apps with biometric authentication, encrypted local storage, data deletion flows, and privacy-by-design patterns for clients handling sensitive personal and health data.