Disk Decipher allows mobile access to your encrypted virtual disks. Do you have your passwords or other sensitive information stored in a TrueCrypt container or FreeOTFE or LUKS volume? Disk Decipher will allow you to access that information from your iPhone or iPad.

Disk Decipher currently supports:

- Manage multiple disks
- Storage provider: local filesystem (transfer the disk image from another app using the Open In menu, or use iTunes to transfer disk images)
- Storage provider: remote (Disk Decipher will download only the necessary parts of the disk image, allowing access to disk images of arbitrary size. More details are available on the support website)
- Remote storage providers: HTTP/HTTPS (WEBDAV), Dropbox, Google Drive

- Disk image format: TrueCrypt (header version 4 and 5, created by TrueCrypt 6.0 or later)
• Operating mode: XTS
• Ciphers: AES-256, Serpent, Twofish
• Cascade ciphers: AES-Twofish, AES-Twofish-Serpent, Serpent-AES, Serpent-Twofish-AES, Twofish-Serpent
• Hash functions: RIPEMD160, SHA-512, Whirlpool
• Hidden volumes supported
• Keyfiles supported

- Disk image format: FreeOTFE (version 3 and 4)
• Operating modes: XTS, CBC
• Ciphers: AES-256, Serpent, Twofish, Blowfish-448
• Hash functions: RIPEMD160, SHA-512, Whirlpool

- Disk image format: LUKS (version 1)
• Operating modes: XTS
• Ciphers: AES-256, Serpent, Twofish
• Hash functions: SHA1, SHA-256, SHA-512, RIPEMD160

- Disk image format: VeraCrypt (header version 5, created by VeraCrypt 1.0)
• Operating mode: XTS
• Ciphers: AES-256, Serpent, Twofish
• Cascade ciphers: AES-Twofish, AES-Twofish-Serpent, Serpent-AES, Serpent-Twofish-AES, Twofish-Serpent
• Hash functions: RIPEMD160, SHA-512, Whirlpool, SHA-256
• Hidden volumes supported
• Keyfiles supported

- Filesystems: FAT (FAT12, FAT16 and FAT32), HFS+ and HFSX
- File viewer supports many document types (Word, Excel, PDF, RTF, plain-text, images, etc.)
- File viewer supports audio playback (MP3, WAV, etc.)
- File viewer supports movie playback (MP4, MOV, etc.)
- File viewer supports printing of all supported document types
- File viewer supports saving images to Photos library
- File viewer supports built-in editing of plain-text files
- File viewer supports swiping to next/previous file (iOS 6.0 or higher required)
- Open In menu to transfer decrypted files to other apps
- Passcode protection with Touch ID support
- Write support (details are available on the support website)
- Photo camera to store new photos securely in your encrypted container
- Import files from other apps supporting document providing

Let me know if you need additional functionality (other disk format, other ciphers, keyfile, cloud storage, writable disk, ....).

What's New

Version 2.3.4

- Fix for Dropbox authorization page changes

Ratings and Reviews

Needs updating badly


Can still decrypt containers under IOS 11, but often cannot open files inside.

Dev MIA?


The developer seems to be MIA. His page has a poll to see what he should do next, but none of it seems to be happening...

Went for it, not regretting at all

Konstantin A. Kolosov

I was very doubtful about this app after reading so many negative reviews, but could not resist trying (hey, it's only a dollar!) as Disk Decipher was the only app showing up when searched for "TrueCrypt". Well, that's what I was going to use it for.
Some people complained about connecting this app to DropBox, but some people just like to complain instead of doing some research or brainwork. If from within the app you click Settings icon and then proceed to About Disk Decipher - the developer's website address is easy to find, and if you browse the website everything will be clear. Yes, it's not the easiest way ever, but we're talking about security. You will understand about your DropBox ID number and how to locate your encrypted containers. I did it with TrueCrypt file and it worked.
Now, what didn't work for me is Open In functions. I tried to open a TrueCrypt file from iFiles app, and Disk Decipher wouldn't show up. Luckily, my iPhone is jailbroken and I've bought iFile, so I simply moved my encrypted container through the filesystem and it showed up in Disk Decipher right away.
Great app, anyway, can't wait for new features in future updates. Please, don't give up on us!


Richard Huveneers
3.6 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Richard Huveneers
In-App Purchases
  1. Large Donation $3.99
  2. Medium Donation $1.99
  3. Small Donation $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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