There is a known issue in iPadOS 13.0 and 13.1. If you use Disk Decipher make sure you are using iPadOS 13.2 (or iOS 12 and below).

This is the support page for Disk Decipher, an app that allows access to encrypted disk images (e.g. TrueCrypt, VeraCrypt or FreeOTFE) from your iPhone and iPad.

Disk Decipher is copyright 2019 Richard Huveneers.

Current status:
Version 2.7.4 has been approved by Apple.

  Download on the App Store

Version 2.7.4 supports:
- Manage multiple disks
- Storage provider: local filesystem (transfer the disk image from another app using the Open In menu, using iTunes to transfer disk images or importing from other apps supporting document providing)
- Storage provider: Linked Disk
Remote storage provider, HTTP and HTTPS based storage. The server must be HTTP 1.1 compliant. This feature should provide access to most cloud storage providers offering webdav access (tested with Box).
Remote storage provider: Dropbox (direct access to disk images stored in your Dropbox account without downloading the full disk image)
Remote storage provider: Google Drive (direct access to disk images stored in your Google Drive account without downloading the full disk image)
- Disk image formats: TrueCrypt, VeraCrypt, FreeOTFE and LUKS
- Filesystems: FAT (FAT12, FAT16 and FAT32, full Unicode in long file names), exFAT, Apple HFS+ and HFSX, NTFS (NTFS compression and encryption are not supported)
- File viewer supports many document types (Word, Excel, PDF, RTF, plain-text, images, etc.)
- File viewer supports streaming audio playback (MP3, WAV, etc.)
- File viewer supports streaming movie playback (MP4, MOV, etc.)
- File viewer supports printing of all supported document types
- File viewer supports saving decrypted images to Photos library
- File viewer supports editing of plain-text files
- File viewer supports swiping to view next/previous file
- Open In menu to transfer decrypted files to other apps
- Passcode protection with Touch ID and Face ID support
- Photo camera to store new photos securely in your encrypted container
- File import (encryption) from apps supporting document providing
- iPadOS external storage

Version 2.8 will add support for Tiles view
Version 2.9 will add support for OneDrive remote storage provider

If you require a specific feature which is currently missing, please submit a feature request so I can prioritize the implementation of new features.

To contact me, please use the e-mail address below. Please consult the FAQ first before contacting me.
Positive feedback is welcome too of course.

Richard Huveneers
appdev at hekkihek.nl