RavenSMS, Secure SMS Messaging

Powerful SMS messaging app that ensures end-to-end encryption, robust security measures and advanced features.
Supports compression to decrease message size, allowing for more messages to be sent at a lower cost.
Operates completely offline, making it useful in situations without internet access and unlike other messaging apps, provides a trustworthy platform without a central server on the internet to store messages or keys.
Users can send formatted texts like HTML and programming codes, interactive task lists, and options buttons that recipients can answer to them.

The app also offers other chat-like features such as
• Removing sent messages
• Blocking unwanted or spam contacts
• Forwarding, and replying to messages.
• Send and receive read status
• Can extract and convert USSD codes into easily clickable buttons
• Save, print, or create PDFs from messages
• Lock and hide conversations
• Send confidential contents using double-encryption
• Sending scheduled SMS and delayed sending to provide the opportunity to cancel messages before sending
• Sign messages with your PIN code or Biometric peripherals such as Fingerprint or Face-Lock to confirm identity. Guarantees to the receiver that the messages are only from you
• Malicious applications with permission to access messages cannot read your encrypted conversations
• By remembering the main password, you can recover encrypted messages even after removing the app and reinstalling it
• Multiple methods of exchanging keys for greater convenience and security, including SMS and QR code

In details:

► End-to-End Encryption (E2EE)
Messages use standard unbreakable algorithms, so only you and the recipient can read them

► Advanced Message Compression
Smart compression auto-selects the best algorithm, sending bigger messages at lower costs

► Full-Featured Chat
Reply, forward, block or delete sent messages from the recipient's device

► Forced Local Encryption
Encrypt regular messages locally to prevent them from being read by other apps on the phone

► Checklists and Option Buttons
Send checklists and receive checked items, as well as option-buttons for quick and easy selection

► Programming Code Support
Send and receive highlighted programming codes inside code blocks. Also, Old school ASCII arts are looking great again with this feature

► Compiled HTML Documents
Send or receive Reach-Texts (HTML format documents) directly within the app

► Extended Message Length
Send texts larger than the usual capacity of the SMS protocol, enabling more comprehensive communication

► Secure RSA public-key cryptosystem
Establish connections using the secure RSA protocol, ensures Keys privacy

► Timely Scheduled Messages
Schedule messages to be sent at specific times, ensuring timely communication even when you're busy

► Read Message Deletion
Delete sent messages once the recipient has read them or schedule a deletion time to maintain privacy

► Confidential Double Encryption
Send confidential messages that are double-encrypted and require authentication to open, providing an extra level of security.

► Important Message Sending
Tag your message as Important to create a more noticeable notification for the recipient and let you know when it was delivered

► Efficient Message Management
Move messages to Work folder to separate and organize work messages
Spams and Block list folders to avoid receiving annoying notifications while always being available to check

And many other amazing features that you will discover inside the app.