Invisible !ηk by Black Sails (iPhone)
Released: Apr 12, 2016
Version: 4.1
Size: 19 MB
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Ranking - Social Networking (iPhone)

Invisible !ηk

Black Sails
Invisible Ink hides the fact that you are communicating securely.

This is the publicly released version of our custom software developed for journalists, activist groups, privacy advocates, private investigators, and other organizations.

What Languages are supported?
English, Spanish, Chinese, Russian, Japanese, Korean, Arabic, and all the other languages and Emojis available on iOS.

How does it work?
Invisible Ink uses AES-256 algorithm to encrypt your message. Then it uses linguistic steganography to make that encrypted cipher text appear as a different message entirely.

How do I Encrypting a Message?
1. First, you and your recipient agree on a password you will use for your messages.

2. Type your message and hit the green lock icon to encrypt the message.

3. Enter the password at the prompt.

4. Select your cover text.

5. Send the message any way you like. Choose from email, SMS, or Twitter. You also have the option of copying the cover text into Facebook, Youtube, a blog or anywhere else you would like.

How do I Decrypting a Message?
1. Copy the entire message, into the Invisible Ink

2. Hit the red “unlock” icon and type the password at the prompt.

I would like a custom version, Who do I contact?
For custom versions, feedback and suggestions contact

What's new in version 4.1
* Updated UI for iPhone 7 & 7+
Our verdict: Great!
  • + Invisible !ηk is a highly rated app (5-star).
  • + It is currently 88% off its regular price.
  • + The app is also at the lowest price we've seen.
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