DekuSMS

DekuSMS

Next-Gen Secure Messaging

• DekuSMS is an open-source Android SMS application engineered for extreme privacy, security, and developer-centric customization.

• It elevates traditional text messaging into a secure, cloud-integrated platform.

Core Security Features

• Signal Protocol: Features end-to-end encryption powered by the Signal double-ratchet protocol, keeping conversation history private.

• Perfect Forward Secrecy: Guarantees that even if a cryptographic key is compromised, past and future messages remain fully secure.

• Offline Encryption: Establishes secure, encrypted communication channels directly over network SMS, without requiring an active internet connection.

Developer and Cloud Integration

• SMS Gateway Capabilities: Bridges mobile SMS with cloud infrastructure by seamlessly forwarding and syncing messages via native RabbitMQ integration.

• Infrastructure Independence: Eliminates reliance on restrictive third-party telecom APIs and proprietary gateway providers.

• Open-Source Ecosystem: Encourages custom builds and collaborative development via GitHub and dedicated Telegram community channels.

Target Audience

• Privacy Advocates: Designed for individuals demanding uncompromising data protection and metadata privacy for daily communications.

• Developers and Engineers: Perfect for those seeking a highly programmable SMS client to integrate mobile hardware with private cloud infrastructure.

• Enterprises: Suitable for organizations requiring secure, automated, and self-hosted SMS routing and warning systems.

Implementation Notes

• Default App Requirement: End-to-end encryption requires both communication partners to install and set DekuSMS as their default system SMS handler.

• Active Development: Continuous user experience optimizations and features are actively being deployed to make secure messaging more accessible.

FAQ

Q: Is DekuSMS completely free and open-source?

A: Yes, it is entirely open-source. This means the code is publicly available on GitHub for anyone to audit, modify, and improve. Because it is a community-driven project, there are no hidden trackers, ads, or proprietary restrictions, making it an excellent choice for privacy advocates and developers who want full control over their communication infrastructure.

Q: How does DekuSMS keep my messages private?

A: To ensure your private chats stay private, DekuSMS features end-to-end encryption powered by the industry-standard Signal double-ratchet protocol. This protocol encrypts your messages on your local device before they are even transmitted, ensuring that only you and the intended recipient can read them, effectively keeping your conversation history safe from prying eyes and interceptors.

Q: What is Perfect Forward Secrecy, and why does it matter for my texts?

A: Perfect Forward Secrecy is a cryptographic feature that protects your past conversations even if someone manages to compromise your current encryption key. In simple terms, DekuSMS constantly changes the keys used to encrypt your messages as the conversation progresses, which ensures that a single compromised key will not expose any of your past or future messages.

Version History

v0.77.0——14 Sep 2026

End-to-End SMS messaging, cloud forwarding and RabbitMQ integrations Download the latest version of DekuSMS to enjoy new features and updates immediately!

*0.77.0

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*0.76.0

Minor bug fixes and improvements. Install or update to the newest version to check it out!

*0.75.0

Minor bug fixes and improvements. Install or update to the newest version to check it out!