# StealthTalk Private Messenger — CyberDefense Secure Encryption > Secure, end-to-end encrypted messaging and voice calls with advanced privacy features. (iPhone/iPad app by StealthTalk Inc..) - Source: https://appshunter.io/ios/app/stealthtalk-private-messenger/id1475892684 (this page in markdown: same URL + `.md`) - Developer: [StealthTalk Inc.](https://appshunter.io/developer/1475892683) - Category: Social Networking, Business - Price: Free with in-app purchases - Rating: 3.80/5 from 10 App Store ratings · 6 written reviews indexed - Age rating: 4+ - Requires: iOS 14.0 · 94 MB - Languages: American English, Ukrainian - Released: 2019-09-05 - Data updated: 2026-08-29 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/stealthtalk-private-messenger/id1475892684/reviews.md ## What is StealthTalk Private Messenger? 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. KEY FEATURES 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. PRIVACY & SECURITY 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. REQUIRED PERMISSIONS 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 support@stealthtalk.com ## Key features - Secure voice calls - End-to-end encrypted messages - Self-destructing messages - Stealth mode - Zero-knowledge architecture - Patented SDNP protocol ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | StealthTalk PRO (1 Month) | $9.99 | one-time | | StealthTalk PRO (12 Months) | $99.99 | one-time | | StealthTalk Pro (1 year) | $49.99 | one-time | | StealthTalk Pro (1 month) | $4.99 | one-time | | StealthTalk Max (1 year) | $99.99 | one-time | | StealthTalk Max (1 month) | $9.99 | one-time | | StealthTalk Elite (1 year) | $149.99 | one-time | | StealthTalk Elite (1 month) | $14.99 | one-time | ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/stealthtalk-private-messenger/id1475892684/reviews.md ### 1/5 — Heats phones up, UI bugs abound, QR code camera bricked *2022-01-27, version 1.11.10* Not happy that this app collects user data, but worse is the abuse it heaps on the phone and the plethora of UI bugs that plague the app. Not only is the camera/QR scan code completely bricked, UI elements like text boxes are not dynamically scalable, leading to some pretty bad user experiences. On top of that, further salting the wound, the app is expensive at $10/Mo. It heats the battery up pretty badly too due to massive data usage. Avoid. ### 5/5 — Has potential *2021-05-21, version 1.9.2* 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. ### 5/5 — IPad *2020-10-10* IPad version Pleasssee! : ) ### 1/5 — It says I have a subscription? *2020-03-28, version 1.5.9* Why does it say that I have a payment due on a certain date! I never signed up for payments!!! Help! ### 5/5 — Nice application. *2020-01-30, version 1.5.3* It’s so good to be able to get people around the world.......! & people will always take care tear’s privacy....! ### 3/5 — Will Update When I Receive A Reply *2019-12-19, version 1.0.6* 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! ## Frequently asked questions about StealthTalk Private Messenger ### What is StealthTalk? StealthTalk is a private messenger designed for professionals, offering secure voice calls and end-to-end encrypted messages. It utilizes a patented SDNP protocol for advanced security and privacy. ### Does StealthTalk have ads? No, StealthTalk is ad-free. As a free application, it focuses on providing a secure and uninterrupted communication experience without advertisements. ### How secure are StealthTalk messages? Messages are secured with true end-to-end encryption using ECC 512, AES 256, and SHA-3 512 primitives. All encryption and decryption occur solely on the user's device, ensuring zero-knowledge. ### Can I send messages that disappear? Yes, StealthTalk allows you to send self-destructing messages. You can set a specific time period after which these confidential messages will be automatically erased. ### What devices support StealthTalk? StealthTalk is available for iPhone and iPod devices. The app requires iOS 4+ and is optimized for mobile communication. ### How does StealthTalk handle user data? StealthTalk employs a zero-knowledge approach, meaning it does not collect or store any content from your messages or calls. User data is not analyzed, sold, or disclosed. ### What is the update frequency for StealthTalk? The latest version of StealthTalk is 1.18.107, last updated on April 21, 2025. Updates typically occur to enhance security features and app performance. ### Is StealthTalk suitable for children? StealthTalk is rated for ages 4+ and is designed for professional use. While technically accessible, its features are geared towards adults requiring advanced communication security. ## Version history (last 5 releases) ### 1.18.107 — 2025-04-21 - bug fixes and UI improvements ### 1.18.103 — 2025-02-04 - Bug fixes and UI improvements ### 1.18.101 — 2025-01-28 - Bug fixes and UI improvements ### 1.18.100 — 2024-12-20 - Bug fixes and UI improvements ### 1.17.109 — 2024-11-19 - UI improvements and bug fixes ## Apps similar to StealthTalk Private Messenger | App | Rating | Price | Category | | --- | --- | --- | --- | | [Signal - Private Messenger](https://appshunter.io/ios/app/signal-private-messenger/id874139669) | 4.7 (1,077,317) | Free | Social Networking | | [WhatsApp Messenger](https://appshunter.io/ios/app/whatsapp-messenger/id310633997) | 4.7 (18,467,867) | Free | Social Networking | | [Text Me - Phone Call + Texting](https://appshunter.io/ios/app/text-me-phone-call-plus-texting/id514485964) | 4.7 (668,125) | Free | Social Networking | | [Text Free: Second Phone Number](https://appshunter.io/ios/app/text-free-second-phone-number/id399355755) | 4.7 (598,862) | Free | Social Networking | | [Telegram Messenger](https://appshunter.io/ios/app/telegram-messenger/id686449807) | 4.0 (277,577) | Free | Social Networking | | [Nextplus: Private Phone Number](https://appshunter.io/ios/app/nextplus-private-phone-number/id920869470) | 4.6 (90,022) | Free | Social Networking | ## Related topics [binbox messenger](https://appshunter.io/ios/topics/binbox-messenger) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*