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NullVault
Prague, Czechia
What it is
NullVault is a mobile app for storing private photos, videos, files, and notes in separate encrypted vaults. Each vault opens with its own pattern; opening one does not show a master list or the total vault count. Users can organize items into collections, search and sort, capture or import content, and deliberately export selected items. Exported copies are outside NullVault’s protection. Local vaults work offline without an account or NullVault server. The maker lists AES-256-GCM and Argon2id for both platforms, with Android Keystore material on Android and Apple CryptoKit and libsodium on iOS. iOS supports encrypted iCloud backup and controlled read-only sharing through CloudKit; Android supports portable encrypted backups. The free iOS plan permits up to five local vaults and 20 items total, with one collection per vault. Compatibility is listed for iOS 26 or later and Android 10 or later. The maker warns that a compromised device may expose patterns, keys, screens, or plaintext, and that hidden-vault design does not make encrypted data impossible to detect.
For and against
For
- Local vaults work offline without an account
- Separate pattern for each vault
- Supports search, sorting, and collections
- Encrypted backup options are listed for iOS and Android
Against
- Free iOS plan allows 20 items total
- Requires iOS 26 or later or Android 10 or later
- Exported copies are outside NullVault’s protection
- Compromised devices may expose vault contents
The verdict
NullVault offers offline vault storage with distinct encryption and backup options across iOS and Android. Its stated device-compromise limits and free iOS item cap are important considerations.
Who it suits
NullVault suits mobile users who want separate offline vaults for private media, files, and notes. Check the platform requirements and free iOS plan limits before choosing it.
Plans and prices
NullVault Free
up to 5 local vaults · up to 20 total items · one collection per vault · encrypted backup
Read 15 Oct 2026 · apps.apple.com
Vaultie Pro Monthly
unlimited vaults, items and collections subject to storage · read-only sharing · duress vault · alternate icons
Read 15 Oct 2026 · apps.apple.com
Vaultie Pro Annual
unlimited vaults, items and collections subject to storage · read-only sharing · duress vault · alternate icons
Read 15 Oct 2026 · apps.apple.com
Vaultie Pro Lifetime
unlimited vaults, items and collections subject to storage · read-only sharing · duress vault · alternate icons
Read 15 Oct 2026 · apps.apple.com
NullVault Free for iOS
Up to 5 local vaults · Up to 20 total items · One collection per vault · Encrypted backup included
Read 7 Oct 2026 · nullvault.app
NullVault Pro for iOS
Unlimited vaults, items, and collections subject to available storage · Encrypted backup included · Controlled read-only sharing · Duress vault configuration
Read 7 Oct 2026 · nullvault.app
On the record
- Account and offline use
- Local vaults work offline without a NullVault account or NullVault server.nullvault.app · read 7 Oct 2026
- Android key protection
- Android uses device-protected Android Keystore material alongside encrypted private app storage.play.google.com · read 15 Oct 2026
- API and SDKs
- The public documentation describes iOS and Android applications and does not identify a public API, SDK or developer integration surface.nullvault.app · read 15 Oct 2026
- Automatic locking
- The active vault locks when the app leaves the foreground, the screen turns off or a configured timeout is reached.nullvault.app · read 15 Oct 2026
- Backup
- Android backups are encrypted exported files with a separate phrase; iOS backups use encrypted iCloud data.nullvault.app · read 15 Oct 2026
- Backups and sharing
- iOS supports encrypted iCloud backup and controlled read-only sharing through CloudKit; Android supports portable encrypted backups.nullvault.app · read 7 Oct 2026
- Capture and export
- Users can capture or import content and deliberately export selected items, with exported copies outside NullVault’s protection.nullvault.app · read 7 Oct 2026
- Company founded
- A Czech business registry records Think Aloud Design s.r.o. as established on 9 May 2022.firmy.euro.cz · read 15 Oct 2026
- Company headquarters
- The developer address is Kodaňská 1441/46, 101 00 Praha, Czechia.play.google.com · read 15 Oct 2026
- Company legal name
- The Android store identifies the developer as Think Aloud Design s.r.o.play.google.com · read 15 Oct 2026
- Company size
- The registry page leaves the employee count unspecified.firmy.euro.cz · read 15 Oct 2026
- Decoy vaults
- A believable decoy vault can be opened with its own pattern while other vaults remain undisclosed in normal use.nullvault.app · read 15 Oct 2026
- Documentation
- The official site provides a feature directory, security architecture, security limitations, platform guides and recovery guidance.nullvault.app · read 15 Oct 2026
- Duress and panic
- Duress mode invalidates access to other local vaults, and Android panic wipe removes the Keystore key needed for future local access.play.google.com · read 15 Oct 2026
- Encryption
- The apps use AES-256-GCM authenticated encryption for vault content and metadata.nullvault.app · read 15 Oct 2026
- External review
- The maker says its scoped design and implementation reviews do not amount to a blanket approval of the final applications and that the site is not an independent audit or certification.nullvault.app · read 7 Oct 2026
- Google Play availability
- The Android listing shows 100+ downloads, an Everyone content rating and no displayed user rating in the opened listing.play.google.com · read 15 Oct 2026
- Google Play data safety
- Google Play reports no data shared with third parties and no data collected, based on the developer declaration.play.google.com · read 15 Oct 2026
