When comparing VeraCrypt vs Cryptomator, the Slant community recommends VeraCrypt for most people. In the question“What are the best file encryption tools?” VeraCrypt is ranked 1st while Cryptomator is ranked 3rd. The most important reason people chose VeraCrypt is:
Veracrypt is an on-the-fly encryption tool. Meaning that it decrypts files only when they are needed and that the files are otherwise kept encrypted the rest of the time.
Specs
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Pros
Pro On-the-fly encryption
Veracrypt is an on-the-fly encryption tool. Meaning that it decrypts files only when they are needed and that the files are otherwise kept encrypted the rest of the time.
Pro Free
This project is free and users are encouraged to donate something to keep the project going.
Pro Several encryption cyphers supported
Supports AES, TwoFish and Serpent encryption cyphers.
Pro Open source code
The source code is open to review. It has already had a security audit and it did well, with small problems fixed by authors within days of being reported. Its predecessor source, Truecrypt, had a detailed audit that found its capabilities sound, completed (ironically) shortly before the TC folks decided to call it quits. Anyone skeptical or curious about what it does can see how it works, at the gut level.
Pro Support for AES code in CPU
Most Intel and AMD (and possibly other) CPUs have AES specific instruction sets, so you needn't task the CPU during the en/de/crypt process when using AES, VC throughput is as if the code were in 'firmware'; you can see the effect if you choose anything but AES as your cipher.
Pro Can create containers
It can create containers (like a encrypted folder) which is very useful.
Pro Regular updates
Veracrypt is in active development with constant and regular updates and several external audits in the planning stages.
Pro Multiplatform
Veracrypt is supported on MacOS, Linux and Windows.
Pro Built on top of TrueCrypt
Pro Easy to use
It's easy to understand and use.
Pro Free and open source
Pro Transparent encryption
Pro Works with any cloud platform
Works with any cloud-based services, including Dropbox and Google Drive.
Pro Fast encryption and decryption
Pro Virtual hard drive file access
Drag and drop.
Pro Client-side
No accounts. No backdoors.
Pro AES individual file encryption
Pro Passphrase bruteforce protection (scrypt)
Pro Multi-platform
Available for Windows, Mac and Linux on desktop and iOS, Android for mobile.
Cons
Con Can't create volumes on the Mac.
The password used to create the volume doesn't open the volume one minute later. VeraCrypt 1.21/FUSE 3.82/macOS 10.12.6. Recreated on 3 Macs now. Unusable.
Con Not plug and play
Requires some tech savvy, so some skill is required, particularly if things go wrong. In the Windows world different UEFI implementations can cause problems in one, not in others, and the solutions are not uniform between issues. For Bitlocker, Microsoft worked out issues with vendors before hand, so if Windows installs and works without bitlocker, it will likely work with it.
Con The UI is not compliant with the Mac
This program does not use Mac UI standards. Nevertheless, it is acceptable.
Con Android version is paid
Con Bugs with deleting of files
Sometimes files cannot be deleted and there is no working solution/fix available yet
Con Current WebDAV is a buggy on Windows
The used WebDAV implemention shows wrong available capacity and has a limitation in the file size. The developers are aware of these problems and working on a better solution.
Con Compatible with Android versions 4.3 and up only
Con Slower speeds
Encypting speeds are slower then regular uploads, larger files particularly video files often cannot complete transfer without errors.
Con No camera upload functionality
Cannot automatically back up photos on mobile devices replacing the need for Google drive or iOS fully. User then has to go and either manually select photos for upload or use cloud service and then encrypt defeating the purpose on mobile clients.