Comparison

StealthTalk Private Messenger vs NexusTalk

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StealthTalk Private Messenger

This secure messenger offers end-to-end encrypted voice calls and messages for privacy-conscious professionals. Features include self-destructing messages, a stealth mode for enhanced privacy, and a zero-knowledge architecture.

Highlights
  • Secure voice calls
  • End-to-end encrypted messages
  • Self-destructing messages
  • Stealth mode
  • Zero-knowledge architecture
  • Patented SDNP protocol
Features
Read full description

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

About

NexusTalk

Features
Read full description

NexusTalk is a modern messaging app designed for private, secure, and reliable communication. It offers a simple and intuitive messaging experience for users who value privacy, safety, and ease of use. Key Features: Encrypted messaging Real-time chat User blocking and message controls Reporting and moderation tools Clean and user-friendly interface We are committed to maintaining a safe and respectful communication environment. Users can report inappropriate behavior, and moderation measures are in place to address violations of community standards. Disclaimer NexusTalk is intended for personal and professional communication. Misuse of the platform is prohibited.

Screenshots

StealthTalk Private Messenger4 screens
NexusTalk4 screens

Verdict

The call

The clearest difference is in-app purchases: NexusTalk at none against StealthTalk Private Messenger's 8. StealthTalk Private Messenger's advantage is iOS requirement (14.0 vs 18.5). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StealthTalk Private Messenger sells 8 one-off in-app purchases. NexusTalk asks for nothing beyond the download.

UpkeepUpdate frequency

StealthTalk Private Messenger ships an update fortnightly, NexusTalk every 2 weeks. The most recent releases landed on September 10, 2026 and September 13, 2026 respectively.

Scorecard2 real differences · 8 level
StealthTalk Private Messenger versus NexusTalk: the parameters behind the verdict, then further details
ParameterStealthTalk Private MessengerNexusTalk
PriceFreeFree
Rating3.8 (10 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings10 — better—
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS14.0 — better18.5
Further details — not scored
Size94 MB250 MB
Age rating4+12+
DeveloperStealthTalk Inc.STACY LYNN PIAGNO

In-app purchases

8 purchases

StealthTalk Private Messenger

One-time8
  • StealthTalk Pro (1 month)$4.99
  • StealthTalk PRO (1 Month)$9.99
  • StealthTalk Max (1 month)$9.99
Show 5 more
  • StealthTalk Elite (1 month)$14.99
  • StealthTalk Pro (1 year)$49.99
  • StealthTalk PRO (12 Months)$99.99
  • StealthTalk Max (1 year)$99.99
  • StealthTalk Elite (1 year)$149.99
None

NexusTalk

No in-app purchases

Questions

Is StealthTalk Private Messenger free?
StealthTalk Private Messenger is free to download, with in-app purchases available.
Is NexusTalk free?
NexusTalk is free to download, with no in-app purchases.
Do StealthTalk Private Messenger or NexusTalk have ads?
Neither StealthTalk Private Messenger nor NexusTalk shows ads.
Which is updated more often, StealthTalk Private Messenger or NexusTalk?
StealthTalk Private Messenger ships an update fortnightly, and NexusTalk every 2 weeks. Most recently, StealthTalk Private Messenger was updated on September 10, 2026 and NexusTalk on September 13, 2026.

Other comparisons