Comparison

StealthTalk Private Messenger vs Ninja Private Messenger

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

Ninja Private Messenger

Features
Read full description

Ninja Private Messenger is the ultimate solution for private messaging. With end-to-end encryption, you can connect with confidence, knowing that your conversations are always secure. Plus, our unique feature of automatically removing all chat data after 24 hours (or a timer set by you) ensures that your conversations stay private. You can make one-to-one or group voice and video calls and add a personal touch to your messages with our range of stickers. Ninja Private Messenger is designed to give you the freedom to express yourself privately and securely. Download the app now and join the growing community of users who trust Ninja Private Messenger for their private communication needs.

Screenshots

StealthTalk Private Messenger4 screens
Ninja Private Messenger4 screens

Verdict

The call

The clearest difference is update cadence: StealthTalk Private Messenger at fortnightly against Ninja Private Messenger's every 6 weeks. StealthTalk Private Messenger also leads on iOS requirement (14.0 vs 18.0). On price, ads, in-app purchases 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 and Ninja Private Messenger sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

StealthTalk Private Messenger ships an update fortnightly, Ninja Private Messenger every 6 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
StealthTalk Private Messenger versus Ninja Private Messenger: the parameters behind the verdict, then further details
ParameterStealthTalk Private MessengerNinja Private Messenger
PriceFreeFree
Rating3.8 (10 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings10 — better—
Update frequencyFortnightly — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS14.0 — better18.0
Further details — not scored
Size94 MB275 MB
Age rating4+17+
DeveloperStealthTalk Inc.Nexever Pvt Ltd

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
3 purchases

Ninja Private Messenger

Subscriptions1
  • Free stickers$2.991 Month
One-time2
  • Remove Ads$0.99
  • Ninja Sticker$0.99

Questions

Is StealthTalk Private Messenger free?
StealthTalk Private Messenger is free to download, with in-app purchases available.
Is Ninja Private Messenger free?
Ninja Private Messenger is free to download, with in-app purchases available.
Do StealthTalk Private Messenger or Ninja Private Messenger have ads?
Neither StealthTalk Private Messenger nor Ninja Private Messenger shows ads.
Which is updated more often, StealthTalk Private Messenger or Ninja Private Messenger?
StealthTalk Private Messenger ships an update fortnightly, and Ninja Private Messenger every 6 weeks. Most recently, StealthTalk Private Messenger was updated on October 24, 2026 and Ninja Private Messenger on October 27, 2026.

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