StealthTalk Private Messenger 4+

CyberDefense Secure Encryption

StealthTalk Inc.

Designed for iPhone

    • 3.7 • 9 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


StealthTalk is a private messenger designed to meet high demands of business- and privacy-minded professionals. Based on a patented SDNP protocol developed for professional use in telecommunications, StealthTalk bridges the gap between professional and consumer security solutions.


Secure Voice Calls
Make secure calls with exceptional voice quality, even with slow internet connection speeds based on TETRA professional communication standards and SDNP protocol.

Secure Messages
Exchange true end-to-end encrypted messages with all sensitive message data encryption and decryption taking place entirely on the user device.

Self-Destruct Messages
Send confidential messages that are erased automatically after a selected period of time.

Stealth Mode
Protected stealth environment for sensitive calls and messages that requires users to enter their password to preview messages or receive calls.


End-to-End Encryption
All communication within StealthTalk is always protected with end-to-end encryption powered by a patented SDNP protocol that uses ECC 512, AES 256 and SHA-3 512 as primitives.

Zero-Knowledge Proof
StealthTalk knows nothing about the content of your messages or calls. User data is not collected or stored on StealthTalk servers and cannot be analyzed, sold or disclosed.

Professional Telecommunications Technology
StealthTalk communication security is based on the patented, tried and field-tested SDNP protocol developed for and used in professional telecommunications.


StealthTalk requires the following permissions to deliver its private messaging services and ensure all features are operational.

• Contacts: Contacts permission is used to match you with your contacts using phone number hashes. StealthTalk does not monetize, collect or store your address book data.

• Microphone: Microphone access is required to make secure voice calls

• Bluetooth & Location: Bluetooth and location access is needed to locate devices close to you and enable encryption key exchange.

• Camera: Camera access is needed to add new contacts via QR code and send pictures with the built-in camera.

• Storage: Storage access is needed to store images and files that you receive in chats.

For additional information and suggestions, please contact

What’s New

Version 1.16.100

- Backup feature
- Bug fixes and UI improvements

Ratings and Reviews

3.7 out of 5
9 Ratings

9 Ratings

Its shabby ,

Will Update When I Receive A Reply

I had stealthtalk installed on my android phone and loved it! Amazing features and an easy design make the app wonderful and the security top notch. Ever since I got the iphone I tried to download and use the app again but it's telling me my restore info isn't correct although I know it is, plus what if I didn't want to recover it? Please respond Dev I love the app and want it too succeed!

Developer Response ,

Dear Shabby6969,

We are very pleased to hear from you, and our support team is ready to resolve your issue quickly and safely. It’s not a service problem, just a trade-off for uncompromising security StealthTalk seeks to achieve.

Please contact us via email ( so we could get more details about this inconvenience, and so you could provide us with security factors verifying your identity.

While we’re waiting for your reply, we can add that we work diligently to improve StealthTalk, and iOS 13 users can expect сall and message notifications in the next update.

thouxon ,

Has potential

I’m giving 5 stars because of the potential, I’ve been looking for an app that can offer full protection while on calls and messages and this app seems to have all the right parts and pieces for that. Interface is very clean but could be smoother when switching from tab to tab! Please keep updating and adding new stuff to this app, many people I know and others will use it over discord or anything like that.

mahfuz's ,

Nice application.

It’s so good to be able to get people around the world.......!
& people will always take care tear’s privacy....!

App Privacy

The developer, StealthTalk Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

You Might Also Like

Social Networking
Social Networking
Social Networking
Social Networking
Social Networking
Social Networking