BlazePod Flash Reflex Training System — 100K+ Users Across 80+ Countries
Built the full React Native companion app for BlazePod's smart LED training pod system — real-time BLE hardware sync with sub-100ms latency, multi-user group training for up to 10 simultaneous athletes, custom workout builder, and coach analytics dashboard. 100,000+ active users. 4.5+ App Store rating. Used by professional athletes, elite sports teams, and rehabilitation centres across 80+ countries.
Client
BlazePod
Project Value
$150,000+
Rating
The Challenge
BlazePod had a hardware product — smart LED training pods that light up in sequences to test reaction time and agility — but needed a mobile app that could serve as the command centre. The technical challenges were demanding: maintain Bluetooth Low Energy (BLE) connections with up to 10 simultaneous pods per session, achieve sub-100ms latency between pod trigger and app response (critical for millisecond-accurate reaction time measurement), support group training with multiple athletes and pod clusters operating concurrently, and run without performance degradation during intensive 60-minute professional training sessions. Previous freelance development attempts had produced prototype code that failed under real training loads — dropped connections, inaccurate timing, and crashes during multi-user group sessions.
The Goal
Build a production-grade React Native app that syncs reliably with multiple BlazePod hardware units via BLE, measures reaction times with millisecond precision, supports custom workout programmes, enables group training for up to 10 simultaneous users, and ships a comprehensive analytics dashboard for coaches and athletes — with zero lag under real-world training load.
Solution & Implementation
1Analysis
Conducted discovery sessions with professional trainers, rehabilitation specialists, and team coaches to map every workflow — individual athlete training, group session management, coach monitoring, and drill programming. Identified that the core technical risk was BLE stack management: iOS and Android handle Bluetooth differently at the system level, and React Native's default BLE libraries were not built for sub-100ms latency. Designed a custom native BLE management layer as the architecture foundation before any UI work began.
2Designing Solution
Selected React Native for cross-platform delivery but built a custom native BLE module — bypassing react-native-ble-plx defaults — to achieve precise timing control. Used a dedicated background thread for BLE operations to prevent UI rendering from competing with pod synchronisation. Designed the training session UX around real coach workflows: rapid drill selection, athlete assignment, live reaction time display during drill execution, and session summary on completion. Analytics were designed for coach consumption — interpreted performance metrics with trend lines, not raw data.
3Customizing Business Logic
Built a custom BLE protocol layer managing multi-pod pairing, connection state across 10 simultaneous pods, and pod firmware versioning. Implemented a reaction time measurement engine with ±1ms accuracy — capturing pod illumination timestamp and athlete touch timestamp independently, computing reaction time server-side for tamper resistance. Built a custom workout creator with 200+ pre-built training programmes (organised by sport: football, basketball, boxing, rehabilitation) plus coach-defined custom drill sequences with configurable pod patterns, timing windows, and rep counts.
4Scale & Optimize
Optimised background BLE processing so the app maintains pod connections even when backgrounded on iOS using Core Bluetooth background modes. Implemented asynchronous cloud sync so training session data uploads after each drill — network connectivity does not affect training performance. Group training mode required a custom session orchestration layer managing multiple athlete instances, pod assignments per athlete, and simultaneous drill execution across different pod clusters. Performance testing under full 10-pod, multi-athlete load confirmed sub-100ms response latency maintained throughout.
Results & Impact
Active Users
App Store Rating
Countries Available
Pod Response Latency
Pro Athletes Using
Custom native BLE module bypassing default React Native libraries — achieves sub-100ms pod response latency required for accurate reaction time measurement
Multi-pod synchronisation: stable BLE connections with up to 10 simultaneous pods in a single group training session
Millisecond-accurate reaction timing: pod trigger and athlete touch events captured independently, results computed server-side for integrity
200+ pre-built training programmes by sport (football, basketball, boxing, rehabilitation) plus coach-defined custom drill builder
Group training mode: independent pod cluster assignments per athlete, simultaneous drill execution, real-time coach monitoring dashboard
iOS Core Bluetooth background mode keeps pod connections alive when app is backgrounded — no interruptions during long training sessions
Asynchronous cloud sync after each drill ensures network quality has zero effect on training performance
100,000+ active users and 4.5+ App Store rating on iOS and Android, used by professional sports organisations across 80+ countries
Key Technologies
"The mobile app Ortem developed for BlazePod has become an essential part of our training ecosystem. Their team understood the precise timing requirements for reflex training and delivered an app that professional athletes trust for their performance training. The real-time pod connectivity is flawless."
BlazePod Team
BlazePod
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Ortem Technologies is a premier custom software, mobile app, and AI development company. We serve enterprise and startup clients across the USA, UK, Australia, Canada, and the Middle East. Our cross-industry expertise spans fintech, healthcare, and logistics, enabling us to deliver scalable, secure, and innovative digital solutions worldwide.
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