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AttacheCase vs Deadbolt: catalog facts
AttacheCase	Deadbolt
Freemium Personal use is free with optional payment; commercial use requires a paid registration…	Free Free and open source under the MIT licence.
Windows, macOS	Windows, macOS, Linux, Command line
Encrypts both individual files and whole folders Available for Windows and macOS	Password-only encryption with very little to configure Encrypted files work across macOS, Windows and Linux
Website and documentation are mainly in Japanese macOS version is still in beta and cannot open AttacheCase 5 format files	No auto-updates on Linux Not a replacement for full-disk encryption
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.