Can you add messaging to our existing product?

Yes. In-app messaging integrated into a marketplace, healthcare platform, legal portal, or HR tool is one of the most common builds in this category. The integration approach depends on your existing architecture, which we assess during discovery before scoping any messaging feature work.

Is the messaging HIPAA compliant for healthcare?

Buildable yes, automatic no. HIPAA-compliant messaging requires encryption in transit and at rest, a Business Associate Agreement covering the messaging infrastructure, access controls preventing cross-patient visibility, and audit logging. We design all of these into the architecture from the start rather than verifying compliance after the feature is live.

Can you build voice and video calling into the app?

Yes. In-app voice and video calling uses WebRTC, which is the same infrastructure that powers browser-based video calls. The call quality, the connection reliability, and the TURN server configuration all affect whether calls work in real network conditions, and we build and test for those conditions specifically.

How do you handle message moderation for consumer apps?

We build moderation tools including automated content flagging, a human review queue for reported messages, and the technical infrastructure for CSAM detection and reporting where required by law. The moderation policy is yours to define. We build the infrastructure that enforces it at the platform level rather than leaving it to user reporting alone.

Chat & Messaging App Development Company

Adding a chat feature to a product sounds straightforward until messages arrive out of order, users do not receive notifications, or two people in the same conversation see different histories. Real-time messaging is one of the harder infrastructure problems in consumer software, and the gap between a messaging feature that works in a demo and one that works reliably under concurrent users is almost entirely in the architecture rather than the interface.

For products where messaging is the core — healthcare platforms requiring HIPAA-compliant communication, legal portals protecting attorney-client privilege, marketplaces keeping buyer and seller conversations on-platform — getting the implementation wrong creates liability rather than just a poor user experience. The compliance requirements shape the architecture before the first message is sent, not after the first audit question arrives.

01

Real-Time Messaging and Threads

One-to-one and group messaging with typing indicators, read receipts, message delivery guarantees, threaded replies, and media and file sharing built in from the start.

02

Real-Time Architecture and Sync

WebSocket-based message delivery that keeps conversations in sync across devices without polling, with offline message queuing and reliable delivery confirmation for every message sent.

03

End-to-End Encryption and Compliance

E2EE implementation, HIPAA-compliant message handling, Business Associate Agreement coverage, and content moderation infrastructure for consumer platforms.

A consumer or niche community messaging platform with direct and group messaging, channel-based communication, media sharing, and the encryption and moderation infrastructure a consumer product requires.

Messaging integrated into an existing product — a marketplace, a healthcare platform, a legal portal, or an HR tool — keeping communication on-platform and within the compliance framework the product already operates under.

An internal messaging tool for organisations that need more control than a commercial team chat product provides, with SSO, data residency requirements, workflow integration, and custom retention policies.

A user who messages on WhatsApp or Slack every day has a baseline that applies to any new messaging product they use: messages appear in the right order the moment they are sent, delivery and read receipts confirm that the other person received them, and a notification arrives on their phone before they think to check the app. A messaging feature that misses any of those three does not feel like a chat product — it feels like a slow and unreliable inbox.

For regulated or sensitive contexts, the expectations go further. HIPAA-compliant messaging in a healthcare app requires encryption in transit and at rest, a Business Associate Agreement covering the messaging infrastructure, and message access controls that prevent one patient’s communication from being visible to another. Consumer messaging platforms accessible to minors face CSAM reporting obligations and content moderation requirements that must be in place before the first user signs up.

05 features

One-to-one and group messaging
Media, file, and voice message sharing
Message reactions, replies, and threads
Push notifications with reliable delivery
Read receipts and typing indicators

Messaging added to an existing product with one-to-one or match-gated conversations and push notifications. These typically fall in the mid five-figure range and take eight to fourteen weeks.

Standalone or niche community messaging with group channels, media sharing, E2EE, and moderation tooling. These sit in the high five-figure range with a fourteen to twenty-two week build.

Internal team messaging with SSO, data residency, custom retention, and workflow integration for regulated or security-conscious organisations. These run into the six-figure range.

These are market ranges, not fixed quotes. We give you an itemized number after a short discovery call.

01Discovery

We map your messaging context, your compliance requirements, your encryption needs, and your existing product architecture before any design decisions are made.

02Design

We prototype the conversation and notification experience before development starts, testing the message delivery flow and the read receipt behaviour specifically.

03Development

We build in sprints with regular check-ins, with the WebSocket infrastructure and encryption layer built alongside the interface rather than added after it is complete.

04Testing

Every build goes through concurrent message load testing and push notification reliability testing before release so delivery failures and ordering issues are found first.

We build messaging apps in React Native for iOS and Android. Real-time message delivery uses WebSockets with a Node.js message routing backend, backed by Redis for online presence, typing indicators, and unread counts. Message history stores in PostgreSQL with optional end-to-end encryption at the application layer. Push notifications go through APNs and Firebase Cloud Messaging. Media and file attachments store on AWS S3. Voice and video calls use WebRTC.

React Native
TypeScript
JavaScript
Node.js
PostgreSQL
Redis
GraphQL
APNs
Firebase
AWS S3
WebRTC
E2EE

01

WebSocket Architecture That Delivers In Order

02

Push Notifications Reliable Enough To Trust

03

Encryption Matched To Your Compliance Obligation

04

Support Through Every Platform and Regulation Change

A messaging feature is only as good as its worst delivery failure. We build the reliability and the encryption layer first because those are what users and compliance officers judge the product on.

A messaging feature is only as good as its worst delivery failure. We build the reliability and the encryption layer first because those are what users and compliance officers judge the product on.

A messaging feature is only as good as its worst delivery failure. We build the reliability and the encryption layer first because those are what users and compliance officers judge the product on.

A messaging feature is only as good as its worst delivery failure. We build the reliability and the encryption layer first because those are what users and compliance officers judge the product on.

01

WebSocket Architecture That Delivers In Order

02

Push Notifications Reliable Enough To Trust

03

Encryption Matched To Your Compliance Obligation

04

Support Through Every Platform and Regulation Change

Yes. End-to-end encryption ensures that messages are encrypted on the sender’s device and decrypted only on the recipient’s, with no readable content stored on or passing through the server. The implementation approach depends on your compliance requirements, which we confirm during discovery before the encryption architecture is designed.

Chat & Messaging
App Development

Why The Chat And Messaging App Market Needs The Right App