Scaling An IoT-Powered Live Streaming Platform For Creators To Broadcast In Real Time
We worked with Blast Radio to transform their MVP into a scalable live audio platform. With microservices, AWS cloud scaling, IoT firmware upgrades, and multiregional streaming, Blast Radio helps creators broadcast lossless audio to global audiences.
Introduction
Blast Radio set out to reimagine live broadcasting by giving creators a way to share high-quality, lossless audio with the world. Their unique hardware device made audio streaming possible, but the MVP infrastructure wasn’t built to scale.
The platform needed to:
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Migrate from Firebase to scalable cloud microservices
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Support multiregional, low-latency audio streaming
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Enable firmware updates for diverse IoT devices
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Build mobile apps for streamers and listeners
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Integrate analytics and engagement tools for creators
The Challenge
Scaling an IoT-driven live streaming app for a global creator base.
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Firebase Limitations: Rising costs and limited scalability with growing users.
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Global Latency: Needed multiregional streaming to reduce lag worldwide.
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IoT Firmware Complexity: Supporting multiple device types and versions.
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Engagement Tools: Building fan mail, tipping, and “vibes” systems.
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Analytics Infrastructure: Consolidating event data across tools into a CDP.

Our Approach
7Span rebuilt Blast Radio’s infrastructure with cloud-native scalability, real-time engagement, and robust IoT support.
Cloud Migration
Migrated Firebase to MySQL and re-architected into AWS ECS & Lambda-based microservices with auto-scaling.
Multi-Region Streaming
Configured Icecast servers for lossless, low-latency audio streaming across regions.
IoT Firmware Release System
Developed a homegrown firmware system to support multiple IoT device types and versions.
Mobile Apps
Built cross-platform apps in Flutter for broadcasters and listeners, enabling profile setup, live streaming, and fan interactions.
Data Streaming & Analytics
Integrated RudderStack CDP to stream data into Amplitude, Customer.io, AWS Personalize, and S3 Data Lake.
Admin Tools
Deployed Retool.io and Metabase dashboards for monitoring, reporting, and system oversight.
7Span helped us scale Blast Radio from an MVP into a truly global live streaming platform. Their expertise in cloud, IoT, and real-time systems was a game-changer.
The Impact
Blast Radio now delivers a frictionless live audio streaming experience for creators and fans worldwide. By scaling from MVP to a robust, global platform, it enables creators to connect with audiences in real time.
50,000+
live broadcasts streamed after launch
30%
Low-latency audio delivery across multiple regions
100%
Seamless firmware updates rolled out across diverse IoT devices
80%
Creator engagement boosted with fan mail, tips, and vibes features
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
Making IT Possible
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