Realtime Data Communication
Sigmato engineers real-time data communication for web, mobile and IoT products, so updates reach your users in milliseconds rather than on the next refresh.
- Live chat, notifications and collaborative editing
- Location tracking, telemetry and live dashboards
- Audio and video calling with WebRTC
- Built to scale, reconnect cleanly and stay secure
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Real-time data communication is the ability to push data between servers, browsers, phones and devices the moment it changes, with delays measured in milliseconds. It is what makes a delivery driver move smoothly across a map, a trading screen tick, or a support chat feel like a conversation instead of an email thread.
Sigmato designs and builds these live features for new products and adds them to existing applications. We pick the right protocol for each job, plan for thousands of simultaneous connections, and make sure the experience holds up on patchy mobile networks.
Real-Time Communication Services
Most projects combine several of the capabilities below inside a single web or mobile application.
Chat and messaging
One-to-one and group chat with typing indicators, read receipts, media sharing and offline delivery.
Voice and video calling
Browser and app calling, screen sharing and conferencing built on WebRTC, alongside our video streaming solutions.
Live location tracking
Driver, courier and asset tracking for delivery, ride-hailing and fleet apps with smooth map updates.
Live dashboards
Streaming charts for operations, sales, trading or monitoring that update without a page reload.
IoT and telemetry
Sensor data ingestion over MQTT, alerting and remote control for industrial and smart-device products.
Notifications and events
In-app alerts, push notifications and event streams that keep users and back-office systems in sync.
Where Real-Time Data Makes a Difference
Live data pays off wherever a delay costs money, safety or user trust. Common use cases include:
- On-demand and logistics. Order status, driver location and ETAs, as in our food delivery and cab booking solutions.
- Finance and trading. Price feeds, order books and instant balance updates where stale data leads to bad decisions.
- Collaboration and communication. Team chat, shared whiteboards, document co-editing and online classrooms.
- Gaming and live events. Multiplayer state, leaderboards, live polls and auctions.
- Industrial and public services. Machine monitoring, traffic systems and emergency alerts that must arrive immediately.

Choosing the Right Real-Time Technology
There is no single protocol for every live feature. We match the technology to the direction of data flow, the volume of messages and the devices involved.
| Technology | Best for | Notes |
|---|---|---|
| WebSockets | Chat, dashboards, collaborative apps | Two-way, persistent connection; widely supported in browsers and mobile |
| Server-Sent Events | One-way feeds such as notifications and live scores | Simple to run over standard HTTP |
| WebRTC | Voice, video and peer-to-peer data | Very low latency; needs signalling and TURN servers |
| MQTT | IoT sensors and low-power devices | Lightweight publish/subscribe protocol |
| Managed services (e.g. Firebase, cloud pub/sub) | Fast MVPs and smaller teams | Quicker to launch; watch usage costs as you scale |
For a deeper technical walkthrough, read our guide to building real-time web apps with WebSockets. On the server side we often use Node.js, whose event-driven model suits large numbers of open connections.
Why Choose Sigmato for Real-Time Data Communication
- Designed for scale. We plan horizontal scaling, message brokers and load testing before launch, not after the first traffic spike.
- Resilient on mobile. Automatic reconnection, message queuing and offline sync so users do not lose data in a tunnel or lift.
- Secure channels. Encrypted transport, authenticated connections and rate limiting, informed by OWASP guidance.
- Standards-based. We build on open specifications such as the IETF WebSocket protocol (RFC 6455), WebRTC and MQTT, avoiding lock-in.
- End-to-end delivery. One team covers back end, web and mobile apps, so the live layer works consistently everywhere.
Real-Time Development Services in Bengaluru and Worldwide
Our engineering centre in Jayanagar, Bengaluru is where clients can meet the team in person for architecture workshops. Our UK branch in Fleet, Hampshire supports British and European clients, and we deliver remotely to the UK, the US, the Middle East and beyond. See the countries we serve, or read about our work as a software development company in Bangalore.
Frequently Asked Questions
Can you add real-time features to our existing app?
Yes. We usually add a dedicated real-time service alongside your current back end, so live chat, tracking or notifications can be introduced without rewriting the whole application.
Should we use Firebase or build our own real-time server?
Managed services are a good fit for MVPs and modest traffic. A self-hosted WebSocket or MQTT layer gives more control over cost, data residency and custom logic once usage grows. We help you choose based on expected volume.
How many concurrent users can a real-time system handle?
With the right architecture, there is no fixed ceiling: connections are spread across multiple servers and coordinated through a message broker. We size the infrastructure to your forecast and load-test it before launch.
Is real-time data secure?
It can be. We use TLS-encrypted connections, token-based authentication, per-channel permissions and input validation so users only receive the data they are entitled to.
Plan Your Live Feature
Tell us what needs to happen in real time and how many users you expect. We’ll suggest an architecture and a clear estimate within one business day.