Cryptomator vs Signal
Side-by-side comparison of features, pricing, ratings, and alternatives.

Cryptomator is free, open-source software that creates password-protected encrypted 'vaults' on your device, encrypting both file contents and filenames with AES-256 before anything reaches a cloud provider. It works transparently with virtually any cloud storage service, including Dropbox, Google Drive, OneDrive, and iCloud, mounting the vault as a virtual drive so encrypted files behave like a normal folder. Because encryption happens entirely on the local device, the cloud provider only ever stores unreadable ciphertext. The desktop client is free and donation-supported, mobile apps carry a small one-time purchase, and Cryptomator Hub offers GDPR-compliant, centrally managed vault access for small teams.
Signal is a nonprofit messaging app focused on privacy, with end-to-end encryption for all messages and calls by default and minimal metadata collection. It is the recommended choice for private communication.
Free and open source, funded by donations.
- Open-source and independently audited
- Works with any cloud storage provider
- Free desktop client
- Simple password-based vault model
- Best-in-class privacy
- E2E encryption by default
- Open source
- Free, no ads
- Mobile apps require a paid purchase
- No built-in cloud storage of its own
- Team features (Hub) are a separate paid product
- Requires phone number
- Smaller network than WhatsApp
- Fewer bells and whistles
What reviewers say
Cryptomator Reviews
No reviews yet.
Signal Reviews
4.8 (4)Great messaging
Tried Signal recently. Free, no ads. Minor gripe: fewer bells and whistles. Would recommend.
Solid choice
We rolled out Signal last quarter. Free, no ads. No real complaints. Would recommend.
Solid choice
We rolled out Signal last quarter. Best-in-class privacy. No real complaints. Would recommend.
More alternatives & similar tools
Alternatives to Cryptomator
View all →Open-source encryption tool that hides file contents, names, and folder structure before cloud sync.
Cross-platform encrypted containers from Jetico for protecting files on disk and in cloud storage.
Alternatives to Signal
View all →The Verdict
AI-generated from listing dataSignal offers free, end‑to‑end encrypted messaging, while Cryptomator provides open‑source client‑side file encryption for any cloud storage; choose Signal for secure chats, Cryptomator for protecting files.
Key differences
- •Signal encrypts messages and calls; Cryptomator encrypts files stored in cloud drives.
- •Signal is a messaging app with built‑in voice/video; Cryptomator is a desktop‑focused encryption tool with no native communication features.
- •Signal is free on all platforms; Cryptomator’s mobile apps require purchase and team hub is a paid add‑on.
- •Signal provides an API; Cryptomator does not.
- •Signal requires a phone number to register; Cryptomator does not require any phone number.
Pricing & value
Signal is completely free and open‑source; Cryptomator’s mobile apps and team hub require paid licenses.
Ease of use / learning curve
Signal works out‑of‑the‑box for messaging; Cryptomator requires creating vaults and mounting virtual drives.
Features & depth
Cryptomator encrypts both file contents and filenames across any cloud provider, a capability Signal lacks.
Integrations & ecosystem
Cryptomator works with any cloud storage (Dropbox, Google Drive, etc.); Signal is limited to its own messaging network.
Collaboration
Cryptomator Hub adds team‑oriented, GDPR‑compliant vault management; Signal has no dedicated team collaboration tools.
Scalability
Cryptomator can protect unlimited files across any number of cloud accounts; Signal’s user base is limited by phone‑number registration.
Support
Cryptomator lists community forum and email support; Signal’s support details are not specified.
Security & privacy
Signal provides end‑to‑end encrypted messaging and voice/video calls with minimal metadata; Cryptomator encrypts files but does not protect communications.
Migration / lock‑in
Cryptomator’s vaults are portable across cloud providers; Signal messages stay within its own network, creating lock‑in.
Choose Cryptomator if…
Users or small teams that must encrypt files before syncing to any cloud service.
Choose Signal if…
Individuals needing secure, private instant messaging and calls.
Common questions
Is there any cost to use Signal or Cryptomator?
Signal is free and funded by donations; Cryptomator’s desktop client is free, but mobile apps and team hub require payment.
Can I use Cryptomator for real‑time chat?
No, Cryptomator only encrypts files; it does not provide messaging or voice/video capabilities.
Does either product lock me into a specific platform?
Signal requires a phone number and works only within its own network; Cryptomator works with any cloud storage, keeping data portable.