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Secret Space Encryptor (SSE)

File Encryption, Text Encryption (Messages, Notes, …), Secure Password Manager
New in version 3.1.4
Added localization for Italian + updated help documentation;

more: https://paranoiaworks.mobi/sse/ssechangelog.htm
➤ File Encryptor: Securely encrypt your private and confidential files or entire folders.
🎥 ~ Basic file encryption video tutorial

➤ Text Encryptor: Protect your messages, notes, cryptocurrency keys (seeds, mnemonics), and other sensitive text from unauthorized access. Use the internal database or simply copy and paste to/from your favorite apps. Set a password for each encryption/decryption session — you can use an unlimited number of passwords for different purposes (e.g., notes, emails, social networking, or communication with individuals A, B, C, etc.).
🎥 ~ Text encryption video tutorial

➤ Password Vault: Securely store and manage all your passwords, PINs, and notes in one place, protected by a single master password. Includes import/export functionality (compressed, fully encrypted .pwv format or unencrypted, editable .xml format).

• Encryption Algorithms: Strong encryption with multiple ciphers, including AES (Rijndael) 256-bit, RC6 256-bit, Serpent 256-bit, Blowfish 448-bit, Twofish 256-bit, Threefish 1024-bit, SHACAL-2 512-bit, and Paranoia C4 2048-bit (available in the S.S.E. Pro version).
• Steganography: Text Encryptor includes a steganographic feature that hides text within JPG images using the F5 algorithm, combined with your chosen cipher to produce a final steganogram (JPEG image).
• Additional Tools: Password Generator, Clipboard Cleaner, Algorithm Benchmark, and more.
• Cross-platform Support: Desktop versions (Windows, Linux, macOS) of File Encryptor and Text Encryptor are available at: https://paranoiaworks.mobi
• iOS Support: Paranoia Text Encryption is also available for iOS (iPhone/iPad/iPod).
• Web Version: An online, client-side JavaScript version of Text Encryptor (AES) is available at: https://pteo.paranoiaworks.mobi
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Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 3.1.4 (132) suggested Added on May 29, 2025

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 4.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • access sensor data at a high sampling rate
      Allows the app to sample sensor data at a rate greater than 200 Hz
    • android.permission.MANAGE_EXTERNAL_STORAGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 10 MiB PGP Signature | Build Log

  • Version 3.1.3 (131) - Added on May 06, 2025

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 4.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • access sensor data at a high sampling rate
      Allows the app to sample sensor data at a rate greater than 200 Hz
    • android.permission.MANAGE_EXTERNAL_STORAGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 10 MiB PGP Signature | Build Log

  • Version 3.1.2 (130) - Added on Apr 22, 2025

    arm64-v8a armeabi-v7a x86_64

    This version requires Android 4.0 or newer.

    It is built by F-Droid and guaranteed to correspond to this source tarball.

    Permissions
    • run foreground service
      Allows the app to make use of foreground services.
    • access sensor data at a high sampling rate
      Allows the app to sample sensor data at a rate greater than 200 Hz
    • android.permission.MANAGE_EXTERNAL_STORAGE
    • read the contents of your shared storage
      Allows the app to read the contents of your shared storage.
    • prevent phone from sleeping
      Allows the app to prevent the phone from going to sleep.
    • modify or delete the contents of your shared storage
      Allows the app to write the contents of your shared storage.

    Download APK 10 MiB PGP Signature | Build Log

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