ConEx was built to remove friction from business advisory conversations by enabling instant, secure voice calls between leaders and experts. The platform allows users to define a business challenge, get expert matches, and connect immediately through encrypted VoIP calls. OrangeMantra developed the Android application using Flutter, focusing on call reliability, security compliance, and a clean, intuitive user experience aligned with Swiss data protection standards.
Technology
Flutter Mobile App Development
We implemented real-time audio calling using WebRTC with end-to-end encrypted media streams. Adaptive bitrate handling and automatic network fallback ensured call stability even on weak or fluctuating connections.
To overcome Flutter’s background execution limits, we integrated native Android foreground services and custom platform channels. This ensured incoming calls rang reliably, survived screen locks, and maintained audio continuity during app state changes.
All signaling and call metadata were secured using encrypted channels. No calls were recorded without consent, and sensitive user data was handled according to Switzerland’s Federal Act on Data Protection, ensuring trust and regulatory compliance.
We implemented safeguards to handle real-world VoIP edge cases such as unstable networks, background interruptions, and device-specific behavior. This ensured consistent call performance across varying network conditions and Android devices.
The goal was to build a reliable Android app that enables secure, low-latency voice conversations between business leaders and experts while meeting Swiss data protection requirements and maintaining a simple, frictionless user experience.
The client needed real-time voice calling, but early prototypes suffered from latency, dropped calls, and inconsistent audio quality, especially on unstable mobile networks.
Users often connected from corporate networks or mobile carriers with strict NAT and firewall rules, leading to failed or one-way calls.
As a Switzerland-based product, the app had to comply with the Federal Act on Data Protection (FADP), requiring secure signaling, encrypted media streams, and strict data handling practices.
Incoming calls failed when the app was backgrounded or locked, and audio routing issues appeared across different Android devices,common problems in Flutter-based VoIP apps.
The ConEx platform delivered a stable and secure calling experience that users could trust from day one.
Optimized signaling and regional routing significantly reduced call setup delays. This led to faster call connections and a better user experience.
Improved NAT traversal and fallback mechanisms minimized failed and one-way calls.
Business leaders reported faster access to relevant experts, leading to higher repeat usage and longer average call durations.
If you’re planning a Flutter-based mobile app that requires real-time communication, security compliance, and production-grade reliability, OrangeMantra can help you build it right, from MVP to scale. Let’s connect and turn complex technical challenges into stable, user-ready products.
