:: Case study / Secure communications
Encrypted chat and video, kept on the client’s own cloud
A US IT firm needed messaging, voice, video and group calls with end-to-end encryption, and every message stored on their private cloud rather than a third party’s.
Client: US IT firm
iOS, Android and desktop
End-to-end encrypted

The brief
A US-based IT firm needed a custom communication app that did more than send messages: text, voice calls, video calls, group video conferencing and group chats, with everything stored securely on its own private cloud.
Security was the foundation. Communications were often sensitive, so everything had to be protected by end-to-end encryption, from simple messages to group video calls. The app also had to be easy to use and handle high traffic across every mode of communication without losing performance.
:: The challenges
What made it hard
01
Encryption everywhere
End-to-end encryption on texts, voice, video and group calls.
02
Real-time quality
Group and video calls without lag or dropouts.
03
Scale
A growing user base and heavy traffic without slowing down.
04
Private cloud
Integration with the client’s own infrastructure for storage and access.
05
Every device
A consistent experience on mobile and desktop.
06
Easy to use
Calls, groups and file sharing that anyone can navigate.
How the platform fits together
Users run the app on iOS, Android or desktop. Messages, calls and files are encrypted on the sender’s device and only decrypted by the intended recipients. Messaging, calling and group services run on the client’s private cloud, and all stored data stays there, so the client keeps full ownership and control. The services were built to scale out as users and traffic grow.
:: What we built
Everything in the app
Private cloud integration
All text, voice and video data stored in the client’s own controlled environment.
Real-time messaging
One-to-one and group chats with read receipts and typing indicators.
Voice and video calls
Switch between voice and video mid-call, tuned for low-bandwidth networks.
Group video conferencing
Several participants on one call with clear audio and HD video.
Group chats with file sharing
For casual conversations and work meetings alike.
Cross-platform apps
The same features and performance on mobile and desktop.
Scalable architecture
Ready for more users and more traffic over time.
End-to-end encryption
Only intended users can read messages or join calls.
:: Delivery
How we delivered it
Platforms
iOS, Android and desktop
Services
UI/UX, mobile apps, dedicated developers
Data
Stored on the client’s private cloud
Security
End-to-end encryption
:: The result
What the client got
Communication
Real-time chat, calls and conferencing in one app
Control
All data on infrastructure they own
Reach
Consistent on mobile and desktop
Future
An architecture ready to grow
:: In the client’s words
MJ
Mike Johnson
Operations Manager, US IT firm
:: Related services
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