Feature comparison
| Question | NullVault | Samsung Secure Folder |
|---|---|---|
| Main model | Multiple pattern-locked content vaults | Separate Galaxy workspace for apps and files |
| Device support | Compatible Android phones and iPhone; this comparison focuses on Android | Supported Samsung Galaxy devices |
| Account needed to set up | No NullVault account for local vaults | Samsung says sign-in may be needed during setup |
| Can copy apps into the private space | No | Yes |
| Different credential opens a different hidden vault | Yes | Not the primary model |
| Portable app-specific encrypted backup | Yes | Samsung says new Secure Folder backups are no longer supported, while older backups may be restorable |
Samsung’s current guide says Secure Folder can use a PIN, password, pattern, or fingerprint, copy apps into the folder, move files, hide the app icon, and optionally enable reset with a Samsung account. It also notes device support and version differences. See Samsung’s Secure Folder documentation.
Which is better for private apps?
Samsung Secure Folder. It can create a separate copy of supported apps and manage accounts inside that workspace. NullVault is not a general app-cloning environment.
Which is better for multiple undisclosed libraries?
NullVault. Its defining model is that each pattern addresses a different vault and the ordinary interface has no master list. Secure Folder centers one private workspace, even though its icon can be hidden or customized.
Example: Grace needs a separate messaging-app installation and browser session; Secure Folder fits. Omar needs unrelated patterns for a work-document vault and a personal-media vault on a non-Samsung Android phone; NullVault fits.
Moving from Secure Folder to an alternative
NullVault creates a portable encrypted backup protected by a separate backup recovery phrase. Samsung’s documentation says Secure Folder no longer supports creating new backups, although previous backups may still be restored. Samsung also documents transfer through Smart Switch to a new supported device. For a move into NullVault instead, export the intended files, import a sample, verify it after locking, and confirm a backup before removing the source. Private app installations are not converted into NullVault content vaults.
When each option fits
Secure Folder is best for a Samsung-specific private device workspace. NullVault is best for cross-compatible Android content vaults, separate pattern-locked spaces, account-free local use, and an explicit portable encrypted-backup workflow.
Comparison reviewed: 12 September 2026. The TAD team at Think Aloud Design compared published product documentation; this is not an independent security audit.