Cross-platform Social Music Game
After securing an investment round, a social music startup needed to scale its multiplayer karaoke platform to support a rapidly growing user base. Their original MVP, built under tight deadlines, struggled with performance bottlenecks, network stability issues, and limited scalability. The startup required a complete architectural overhaul of its native iOS and Android apps, including reworking the complex network layer and multiplayer system, while ensuring a seamless user experience.
- Questlogic set itself apart by designing a state machine-based architecture, ensuring seamless real-time performance for multiplayer interactions – something many competitors struggled with at scale.
- Unlike generic solutions, Questlogic’s specialized engineering team built a customized network layer optimized for low-latency karaoke streaming, delivering a superior user experience.
- We’ve suggested that cross-platform approach Client desired originally will have its limitations in audio synchronization and is not the best solution for the project, despite our company being specialized in cross-platform engineering. Native iOS and Android approach us to build deeper hardware integration, outperforming cross-platform alternatives in responsiveness and audio sync.
- By prioritizing scalability and modular design, Questlogic enabled rapid feature iteration, giving the client a competitive edge in launching new experiments without disrupting stability.
- While rival platforms faced bottlenecks and technical debt, implemented architecture delivered a 4.7+ user rating, setting a new internal benchmark for quality.
- Mobile Development – Native Swift (iOS) and Kotlin (Android) for optimal performance, smooth animations, and low-latency audio processing.
- Backend & Networking – Node.js with WebSockets for real-time communication, combined with gRPC for efficient, low-latency client-server interactions.
- State Management – State machine-based architecture to handle complex user interactions and multiplayer game logic with stability and predictability.
- Cloud Infrastructure – AWS (EC2, S3, RDS, Lambda) for scalable deployment, with CloudFront CDN for fast media streaming and DynamoDB for high-speed metadata storage.
- Audio Processing – WebRTC and Opus codec for real-time audio streaming with minimal lag, ensuring a synchronized karaoke experience.
To meet the startup’s goals, we conducted an in-depth technical assessment and aligned with the client on continuing with native development for optimal performance. Our team assembled specialized engineering units dedicated to key areas, including:
- Architectural Redesign – Our software architect collaborated with startup’s CTO and core engineering team to introduce a new architecture, optimizing system flow and reducing edge case failures.
- Network Optimization – We re-implemented the client-server communication layer, ensuring smooth real-time interactions in multiplayer mode.
- Scalability & Maintainability – We built a modular codebase, allowing for rapid iteration and A/B testing of new features without disrupting stability.
Knowing cross-platform approach well implies the knowledge where you should avoid it.
Denis Avramenko, CTO @ Questlogic
- Increased App Stability – User-reported crashes and connectivity issues were significantly reduced, leading to a more reliable multiplayer experience.
- Improved User Ratings – The App Store and Google Play ratings climbed to 4.7+, reflecting enhanced performance and quality.
- Faster Experimentation & Growth – The new architecture enabled the startup’s product team to iterate and deploy new features more efficiently, accelerating innovation and user engagement.
Curious about Questlogic’s services, projects, or partnership options? Our doors are open to everyone. Simply get in touch with our team members who will ensure you have access to all relevant information.